1. Known Issues and Caveats
  2. Known Issues and Caveats
  3. Known Issues

Known Issues

The following table lists the known issues in version S-Cz9.0.0. You can reference known issues by Service Request number and you can identify the issue, any workaround, when the issue was found, and when it was fixed using this table. Issues not carried forward in this table from previous Release Notes are not relevant to this release. You can review delivery information, including defect fixes in the S-Cz9.0.0 Build Notes.

ID Description Severity Found In
35649015 When Teams places a call on hold, SBC is not generating an RTCP, causing Teams endpoint to drop the call after 3 minutes. 3 S-Cz9.2.0p2
33600407 When IPv4 and IPv6 addresses are added consecutively on the hip-ip-list and icmp-address of same network-interface, followed by save/activate, the configuration change is eventually activated but the SBC will get into unsteady state, followed by below events on the console:

unregister_netdevice: waiting for <interface:id> to become free.Usage count = 1

Workaround: Add IPv4 and IPv6 address on the hip-ip-list and icmp-address separately and activate them individually i.e. activate the first config change/addition and then add and activate the second config change.

 2 S-Cz8.4.0
33190562 On the AP3950 and AP4900, in < 0.1% of reboots, the platform gets stuck and does not reach the ACLI prompt.

Workaround: perform a power cycle to successfully reboot the system.

 2 S-Cz9.0.0p1
33059603 On the AP3900, AP3950, and AP4900, when performing quickly successive switchovers, an active system system may not synchronize and go OOS after a failover.

Workaround: Set the gateway heartbeat interval timeout value to 10 seconds with 3 gateway heartbeat retries.

 3 S-Cz9.0.0p1
32742216 The Acme Packet 1100, 3900 and 4600 as well as all software-only deployments do not support any Media Policing configuration. 3 S-Cz8.4.0
32077115 For Hairpin/Spiral call scenarios, the hide-egress-media-update parameter under media-sec-policy is not supported.

In addition, you must reboot the SBC when you change the hide-egress-media-update parameter under the media-sec-policy, inbound subelement. This parameter is not RTC supported.

Oracle recommends you use the hide-egress-media-update parameter under the realm-config only.

 3 S-Cz9.0.0
32565921 The acquire-config process fails if your configuration includes an acp-tls-profile. The system does, however, successfully synch this profile after HA is established.

Workaround: Disable your acp-tls-profile on the active system before performing an aquire-config procedure. Re-enable this profile after aquire-config completes successfully.

3 S-Cz9.0.0

None

The system does not support SIP-H323 hairpin calls with DTMF tone indication interworking. N/A S-CZ720

None

The SBC stops responding when you configure an H323 stack supporting SIP-H323-SIP calls with the max-calls parameter set to a value that is less than the q931-max-calls parameter.

Workaround: For applicable environments, configure the H323 stack max-calls parameter to a value that is greater than its q931-max-calls parameter.

N/A S-CZ7.4.0

26316821

When configured with the 10 second QoS update mechanism for OCOM, the SBC presents the same codec on both sides of a transcoding call in the monitoring packets.

You can determine the correct codecs from the SDP in the SIP Invite and 200 OK.

3 S-Cz8.0.0p1
The SBC dead peer detection does not work with IKEv1. 3 S-Cz8.4.0
28539190 When operating as a VNF and using Mellanox interface cards, the OCSBC does not use the Host In Path (HIP) configuration to restrict management traffic, Instead the system allows any traffic over the interface. 3 S-Cz8.2.0
28617865 This version of the OCSBC is not supported as a VNF over VMware using Mellanox interface cards. 3 S-Cz8.2.0
29170419 In long call scenarios, the SBC is not sending the expected refresh before the Session-Expires: header value time is up for SUBSCRIBE messages. 2 S-Cz8.2.0

Resolved Known Issues

The following table provides a list of previous Known Issues that are now resolved.
ID Description Severity Found In Fixed In
35614646 Certain RFC2833/telephone-event sequences generated by customer endpoints may not be properly detected, reported, or re-transmitted by the SBC, resulting in missing DTMF digit(s). 2 S-Cz9.0.0p10 S-Cz9.0.0p12
32709550 When operating over the Azure platform, the SBC displays an inordinate number of kernel messages during the bootup process. You can safely ignore these messages. 3 S-Cz9.0.0 S-Cz9.0.0

26323802

The 10s QoS interim feature includes the wrong source IP address as the incoming side of a call flow.

The issue does not prevent successful call and QoS monitoring. For monitoring and debugging purposes, you can find the source IP in the SIP messages (INVITE/200OK).

3 S-Cz8.0.0p1 S-Cz9.0.0p5

26497348

When operating in HA mode, the SBC may display extraneous "Contact ID" output from the show sipd endpoint-ip command. You can safely ignore this output. 3 S-Cz8.0.0 S-Cz9.0.0p5
28658810 When operating as a VNF and using Mellanox interface cards, the OCSBC does not support any other type of card for media interfaces. (If any media interface uses a Mellanox card, all media interfaces must use a Mellanox card.) 3 S-Cz8.2.0 S-Cz9.1.0
34022202 It is possible that the system (active or standby) can experience cores reaching 100% CPU utilization when running periodic scripts which connect/disconnect via SSH to the SBC. This is observed in the display-alarm output.
Workaround:
  • Do not run two scripts from two different users simultaneously.
  • Do not run the save/activate on the ACLI when period script is running on the system.
  • Do not exit from the SSH session when save/activate is being run on another session.
  • Do not exit from the SSH session on the standby when save/activate is being run on the active.
If the issue is encountered on an active system:
  1. Execute forced switch-over.
  2. Reboot the new standby.
If the issue is encountered on the standbysystem:
  1. Reboot the standby.
 2 S-Cz9.0.0p3 S-Cz9.0.0p4
33434641 If local-port-match value is set under security-policy, and local-port-match-max is not set, then SBC processes traffic considering full port range. SBC considers the default value of local-port-match-max (i.e. 65535) and applies the specific action mentioned under security-policy to full port range. Configure the local-port-match-max or remote-port-match-max value to set a new port range or set same value for local-port-match and remote-port-match-max to configure a single port. 2 S-Cz8.4.0p4 S-Cz8.4.0p9
32181987 Do not copy/paste characters into a configuration menu and attempt to edit the copied text. This applies to both console and SSH sessions.

Workaround: Edit the data before copy/paste.

 3 S-Cz8.4.0 S-Cz9.0.0p3
33175617 After upgrading to SCZ900p2 if you have the following configured “http-interface-list” GUI,REST instead of in the order REST,GUI (REST being first) the GUI will go down and will be inaccessible until you access the ESBC via the ACLI and modify the order of the http-interface-list as REST, GUI rather than GUI, REST.

Workaround: Prior upgrading to SCZ900p2, Configure the HTTP Interface List in order REST, GUI from GUI. If upgrade has already been done, Configure the http-interface-list in order REST, GUI from ACLI.

 3 S-Cz9.0.0p2 S-Cz9.0.0p2
33454565 The AWS SPL NAT does not function with Scz9.0.0p1, hence you need to load all SPL files by default but not activate them using the spl-autoload-for-sbc option at global spl-config level. You can also activate a specific SPL. There can be issues if you select multiple preloaded SPLs or enable the spl-autoload-for-sbc option with a bulky configuration. With Scz9.0.0p2 and newer, you need not configure these options. 3 S-Cz9.0.0p1 S-Cz9.0.0p2
32535426 The show temperature output will display different values compared to releases older than S-Cz8.3.0. Starting with S-Cz8.3.0, the temperature queries via ACLI and SNMP are reporting more accurate values.
  • Similar components may not correspond between different platforms due to physical differences in each system.
 3 S-Cz8.1.0 S-Cz8.3.0
33059603 On the AP3900, AP3950, and AP4900, when performing quickly successive switchovers, an active system system may not synchronize and go OOS after a failover.

Workaround: Set the gateway heartbeat interval timeout value to 10 seconds with 3 gateway heartbeat retries.

 3 S-Cz9.0.0p1 S-Cz9.0.0p2
ACMECSBC-35051 The SBC does not support HA replication of a Wildcard PAU. 3 S-Cz9.0.0 S-Cz9.0.0p1
32939208 You cannot set the SBC ikev2-ipsec-wancom0-params parameters using SDM due to issues with the configuration of the rekeyfuzz and localip parameters. Note these parameters have defaults or "0" and "empty" respectively. You can, however, configure these values from the SBC .

You cannot set the OCSBC ikev2-ipsec-wancom0-params via SDM due to issues in configuration of parameters rekeyfuzz and localip, which have defaults or "0" and "empty" respectively, using OCSDM.

Furthermore, if you change the values for rekeyfuzz and localip, you cannot change them back to their defaults.

Workaround for changing these parameters' values back to their defaults:

  1. remove the ikev2-ipsec-wancom0-params element from your configuration.
  2. Add the element again and set your values.
 3 S-Cz9.0.0 S-Cz9.0.0p1

24574252

The show interfaces brief command incorrectly shows pri-util-addr information in its output. 3 S-Cz7.4.0 S-Cz9.0.0
ACMECSBC-38270 Do not configure STIR over TLS. This configuration causes the system to crash. 3 S-Cz9.0.0 S-Cz9.0.0p1
32939113 Do not configure the auth-user-lookup parameter within the local-policy, policy-attribute without already having:
  • A configured sip-interface or,
  • If that sip-interface does not point to a configured realm
If either of these conditions are true, the SBC crashes when you perform a save-config or a verify-config.

Workaround: Configure the applicable sip-interface and associated realms before you configure the local-policy, policy-attribute, auth-user-lookup parameter.

3 S-Cz9.0.0 S-Cz9.0.0p1
29439964 ACLI Users will receive an error on the output of the show registration sipd by-user command. 4 S-Cz8.2.0 S-Cz8.4.0
32534935 Media is not resumed after RBT playback for transcoded calls on vSBC. Avoid upgrading to releases where this bug is open if your deployment uses a vSBC with Transcoding and is configured to use Ringback-Trigger values. 3 S-Cz8.4.0M0P4 S-Cz9.0.0
31163030 In VOLTE deployments with registration refreshes, you may see unusually large numbers in the alloc and usage count fields while executing the show buffers command. This is a known statistics accounting issue. 4 S-Cz8.3.0 S-Cz9.0.0
31315823

When running IMS-AKA over UDP on virtual SBCs, IMS-AKA registrations may not succeed. Registration failure can also cause associated calls to fail. Oracle has observed this only happens after a system reboot. Oracle has also observed that performing a Save and Activate command sequence after a reboot ensures these registrations are successful.

If you are running IMS-AKA over UDP on virtual SBCs, perform a Save and Activate command sequence after system reboot to ensure successful IMS-AKA registrations.

3 S-Cz8.4.0 S-Cz9.0.0
31828563 While using STIR/SHAKEN, Acme Packet 4600 performance is capped at 330 CPS, and Acme Packet 6350 performance is capped at 1200 CPS for both dual and quad NIU cards. 3 S-Cz8.4.0M0P2 S-Cz9.0.0
Do not upgrade to S-Cz9.0.0 directly from S-Cz8.4.0p4, S-Cz8.4.0p5 or any S-Cz8.4.0p5 OOC patches up to S-Cz8.4.0p5B. If running these versions, upgrade to S-Cz8.4.0p5C before upgrading to S-Cz9.0.0. Upgrading directly from these versions may cause the system to crash.

When upgrading from these versions, upgrade to S-Cz8.4.0p5C first.

 3 S-Cz8.4.0M0P4 S-Cz8.4.0M0P5

29881449

The DSP used by the OCSBC has a vendor firmware defect that causes failures with the T.38 codec. If you are using the T.38 codec, you may experience minimal media losses on those calls. This problem may also cause the OCSBC to reboot. 3 S-Cz8.1.0m1p9 S-Cz8.4.0p4
32517222 Media is not resumed after RBT playback for transcoded calls on vSBC. Avoid upgrading to releases where this bug is open if your deployment uses a vSBC with Transcoding and is configured to use Ringback-Trigger values. 3 S-Cz8.4.0M0P4 S-Cz8.4.0P4A

Please see the section on Upgrades For Configurations that Include Signaled IPSec Tunnels and LI Configurations in Upgrade Downgrade Caveats in this document for an explanation of this issue.

 3 S-Cz8.4.0 S-Cz9.0.0

28618563

The system is not populating the Username AVP in Accounting Requests (ACRs) correctly. When triggered by an INVITE, these AVPs contain only the "@" sign. They do not include the username and domain name portion of the URL. 3 CZ8.1.0m1 S-Cz8.4.0
31726575 Do not configure sip-advanced-logging if you expect any auth-invite call flows (401/407). If you are upgrading to S-Cz8.4.0p2 or later, and your configuration includes conditional logging (session-router, sip-advanced-logging, state=enabled), you must first remove sip-advanced-logging from the config, otherwise calls will fail.
  • Setting the state to disabled does not work and removing it is required.
 2 S-Cz8.4.0p2 S-Cz8.4.0p4
32049267 Do not configure AEAD_AES_256_GCM cipher in the sdes-profile, crypto-list parameter, or the system will crash. 3 S-Cz8.4.0p3 S-Cz8.4.0p4
31384643

During the testing of this release Oracle identified a pre-existing issue in the code where adding an LI warrant during a period of heavy SIP load may cause the system to stop responding, which results in a switchover. This issue exists in prior releases and will be addressed in an upcoming 8.4 patch. If you have not encountered this issue in the past, it is unlikely that you will encounter it now.

System Impact: If you add an LI warrant while the SBC is under heavy load from SIP traffic, a mid-call intercept operation may not occur after the addition (causing the SBC to stop responding). If the SBC stops responding a switchover will occur, but the warrant will have been added correctly. The issue can be mitigated by performing addition of LI warrants during off-peak times, such as maintenance windows.

3 S-Cz8.4.0 S-Cz8.4.0p2

30364057

Do not use DNS for multiple services on the OCSBC simultaneously. DNS service operates on the OCSBC normally when you configure it for a single purpose. When you configure it for multiple purposes, however, lookups do not complete correctly.

Workaround: An example of this would be configuring DNS for both PCRF and ENUM services. You can mitigate this issue by configuring the local routing table with ENUM lookups.

3 S-Cz8.3.0p7 S-Cz8.3.0m1p5

29862440

When transcoding from T.38 to G711FB, the OCSBC includes multiple (for example 2) m-lines in the SDP when there are multiple (for example 2) c-lines in the source SDP. This happens even if you have set the fax-single-m-line parameter in the applicable codec-policy to present a single m-line.

Workaround: Configure an ingress HMR to remove all but 1 c-line from the incoming SDP.

3 S-Cz7.4.0m1p8 S-Cz8.3.0m1p3

30158557

Under high media loads that include AMR/AMR-WB to PCMA transcoding, the 10G port on the Acme Packet 6300 is experiencing packet loss and, therefore media MOS degradation. 2 S-Cz8.1.0m1p16 S-Cz8.4.0

30444535

When configured for the minimum TCP disconnect time, the default for network-parameters, the OCSBC takes an unexpectedly long time before attempting to create a socket and connect. When using the defaults to create and connect using the minimum amount of time, this process takes 18 seconds instead of 9. 3 N/A S-Cz8.3.0m1p3

29846828

The OCSBC stops generating registration refreshes after 12 hours for Surrogate Agents. After a reboot, the OCSBC attends to registration and refreshes correctly using the new Call ID for 12 more hours. 2 E-Cz8.1.0m1p8 S-Cz8.1.0m1p22

30330778

The OCSBC cannot forward a call that uses a TEL-URI and includes the routing number (rn) parameter. Depending on your routing configuration, the OCSBC may reject these call with a 404 Not Found/No Route to Destination. The OCSBC forwards these portability scenarios properly when they present an R-URI. 1 S-Cz7.4.0m2p4;8.1.0m1p18 S-Cz8.1.0m1p23

29779932

The OCSBC uses a Diffie Hellman algorithm that conflicts with that of the 10.4 Solaris SFTP server. As a result, both CDR and HDR transfers to these servers fail.

Do not use the Solaris 10.4 SFTP server with the OCSBC.

1 S-Cz8.1.0m1p9, S-Cz8.3.0p7 S-Cz8.3.0m1p4

29403076

When generating HDR reports and SNMP output on resource utilization that includes threads, the OCSBC omits the thread name, leaving the applicable field and OID empty. 3 S-Cz8.1.0M1P9 S-Cz825p3
310398.2.0 When mid-call Lawful Intercept is enabled, and the SBC has not started intercepting particular sessions, those sessions will not be replicated on the standby. If a switchover occurs, affected calls could be dropped. 3 S-Cz8.3.0m1p2 S-Cz8.4.0
26432028 On the Acme Packet 1100, Acme Packet 3900, and VME un-encrypted SRTP-SDES calls result in one-way audio. 3 E-Cz7.5.0 S-Cz8.0.0

28157960

When setting up a SIPREC session, the SBC sets up 1-way audio if the far end offers an odd port number in the m line.

2 S-Cz8.0.0 S-Cz8.3.0m1p8

26669090

The SBC dead peer detection does not work with IPv4. 3 S-Cz8.0.0 Could not reproduce - S-Cz8.4.0

22322673

When running in an HA configuration, the secondary SBC might go out of service (OoS) during upgrades, switchovers, and other HA processes while transitioning from the "Becoming Standby" state. Oracle observes such behavior in approximately 25% of these circumstances. You can verify the issue with log.berpd, which can indicate that the media did not synchronize.

Workaround: Reboot the secondary until it successfully reaches the "Standby" state.

3 S-Cz7.3.0P1 S-Cz8.0.0

29931732

The embedded communications monitor probe does not send IPv6 traffic to the Oracle Communications Operations Monitor's mediation engine. 3 S-Cz8.0.0 S-Cz8.3.0m1p4
30375697 Infrequently during race conditions, the number of SIP registration entries on the active and standby SBCs differs, with the standby SBC containing fewer entries. When this happens and a switchover occurs, some endpoints are unable to receive calls until the endpoint re-registers. Increase Journal index size and optimize the Journal management code to avoid this. 2 S-Cz8.1.0m1p18 S-Cz8.1.0m1p18b
30544663 When a session add action is executed and the session is not found in the sipProxy, a new Sip Session and two Sip Dialogs are created and cross referenced and the buffer from the active is loaded. If the load fails, the update function exits and the SipSession and SipDialogs are left dangling and create a memory leak.

Workaround: To avoid this memory leak, successfully load the buffer BEFORE creating the session and dialogs. Monitor the standby SBC's memory usage and reboot as needed.

3 S-Cz8.1.0m1 S-Cz8.1.0m1p18b
30498837 A sipd process crash occurs with a signature containing the following: 
ZNSt8_Rb_treeISsSt4pairIKSs4SptrI10SipContactEESt10*_Select*1stIS5_ESt4lessIS sE SaIS5_EE11equal_rangeERS1_ (+ 0x67) - sp =
0x7f334938d380, ip = 0x1f1b117
The SBC can leak File Descriptors in cases where there are certain process errors. For example: 
[MINOR] (0) Selector::do_select() - epoll_ctl(DEL,
409) failed with errno=9:Bad file descriptor)

This does not trigger proper closure of sockets. This is avoided by closing the socket that was opened and then setting an error identifying exact error code.

2 S-Cz8.1.0m1p18 S-Cz8.1.0m1p18b
29403076

The "thread-event" and "thread-usage" HDR categories are displaying incorrectly due to MBCD and SIPD thread names not properly writing into the files and OID output. MBCD and SIPD now properly assign and pass the proper names.

3 S-Cz8.1.0m1p9 S-Cz8.1.0m1p18b
29633588

During certain configuration activities, the SBC restarts due to an issue caused by improper configuration steps being processed in the sip-manipulation, header-rules.

The SBC now returns an error message stating "Invalid Selection" instead of failing.

3 S-Cz8.1.0m1p11 S-Cz8.1.0m1p18b
29937232

GW unreachable and NetBufCtrl MBUFF errors - This can result in system instability including crash, gw-unreachable and redundancy issues. System will switchover if in HA. Show Buffers output will normally show an increase of errors reported in the NetBufCtrl field due to mbuf’s not being freed.

2 S-Cz8.3.0 S-Cz8.3.0p6
288.2.0258 On VNF platforms, when running TLS Chat on VMware-PV 4core (SSFD) + 16GB, TLS Chat sessions are gradually decreasing. When looking in Wireshark at EXFO, EXFO forwards a wrong TLS MSRP Chat payload to EXFO UAS.

TCP Chat does not have this error.

3 S-Cz8.0.0 S-Cz8.3.0m1p2
For Advanced Media Termination deployments using the 4600, 6300, 6350 platforms, the SBC is generating RTP and RTCP on the ports 20000 and 20001, instead of generating both on the same port 20000. 3 S-Cz8.3.0 S-Cz8.3.0m1p2
29522609 Some calls that are configured to generate ring back tones result in one-way audio. 2 S-Cz8.3.0 S-Cz8.3.0m1p2
29607573 The SBC is unable to successfully initiate a TCP connection to configured Diameter Accounting (Rf) servers. 2 S-Cz8.3.0 S-Cz8.3.0m1p2

30114764

When presenting the content type for SPIROU during SIP to SIPI interworking, the SBC is displaying the text base=spirou. Based on relevant standards, it should display base=itu-92+ as the content type. 4 S-CZ8.3.0m1 S-Cz8.3.0m1p2

30127762

When performing SIP to SIPI interworking, the SBC is not including an ISUP REL in the interworked body of its 400 Missing CSeq message when it rejects applicable calls from the SIPI side. 4 S-CZ8.3.0m1 S-Cz8.3.0m1p2

30240798

The OCSBC closes connections when using some SFTP clients, including WinSCP and MOBA, to upload files over 200KB.

Workaround - Use the Linux or Filezilla SFTP client when uploading files greater than 200k.

3 S-CZ8.3.0p6 S-Cz8.3.0m1p2

30289027

Azure does not always properly reset media interfaces after the OCSBC reboots. Instead, Azure sometimes tries to process a non-existent packet as soon as the OCSBC comes back up, resulting in a kernel panic.

Workaround - If you experience a kernel panic after OCSBC reboot, stop and restart the vSBC from the Azure UI.

3 S-Cz8.3.0 S-Cz8.3.0m1p2

28617938

The anonymize-invite option for CommMonitor is not RTC. To see a change, you must either reboot or toggle the admin state. The following is a general admin state toggle procedure:
  1. Set admin state to disabled.
  2. Save and activate.
  3. Set admin state to enabled.
  4. Save and activate.
4 CZ8.1.0m1 S-Cz8.3.0
29556215 The SBC does not send SIPREC data to a remote call server. 2 S-Cz8.3.0 S-Cz8.3.0p5
29608499 In all documents except for the Release Notes and Installation guide, the printed version of this release (S-Cz8.3.0) is incorrectly displayed as S-Cz8.2.0. 4 S-Cz8.3.0 S-Cz8.3.0p3
28539155 When operating as a VNF and using Mellanox interface cards, the OCSBC does not support ICMP over IPv6. 3 S-Cz8.2.0 S-Cz8.3.0
28526228 Maximum SRTP capacity on VNF platforms is 25% lower than in the S-Cz8.1.0 release. Expected capacity will be restored in a follow up patch. 3 S-Cz8.2.0 S-Cz8.3.0

26313330

In some early media call flows, the SBC may not present the correct address for RTP causing the call to terminate. 3 S-Cz8.0.0 S-Cz8.2.0

26281599

The system feature provided by the phy-interfaces overload-protection parameter and overload-alarm-threshold sub-element is not functional. Specifically, enabling the protection and setting the thresholds does not result in trap and trap-clear events based on the interface's traffic load.

The applicable ap-smgmt.mib SNMP objects include:

  • apSysMgmtPhyUtilThresholdTrap
  • apSysMgmtPhyUtilThresholdClearTrap
3 S-Cz720 S-Cz8.2.0

27539750

When trying to establish a connection between the SBC and your network, while using TLS version 1.2, the SBC may reject the connection.

Workaround: You may need to adjust your cipher list.

3 S-Cz8.1.0 S-Cz8.1.0
28062411 Calls that require SIP/PRACK interworking as invoked by the 100rel-interworking option on a SIP interface do not work in pooled transcoding architectures. 2 S-Cz7.4.0 S-Cz8.2.0
None The CZ8.1.0 release does not support IPSec on the Acme Packet 3900 and VNF. You must upgrade to CZ8.1.0p1 to get this support. After you upgrade to CZ8.1.0p1, do the following:
  1. Run setup entitlements, again.
  2. Select advanced to enable advanced entitlements, which then provides support for IPSEC on Acme Packet 3900 and VNF systems.
N/A S-Cz8.1.0 S-Cz8.2.0
28.3.05575 On VNFs, the system erroneously displays the IPSEC entitlement under "Keyed (Licensed) Entitlements." The error does not affect any functionality and you do not need to do anything. 4 S-Cz8.1.0 S-Cz8.2.0

28659469

When booting CZ8.1.0M1 on any virtual platform, not all system processes start. This known issue only occurs on initial boot, and not in an upgrade scenario.

Workaround: Reboot the SBC a second time, after it initially starts.

3 SCz8.1.0m1 S-Cz8.2.0
27240195

The cpu-load command does not display the correct value under show-platforms.

3 E-Cz8.0.0 S-Cz8.2.0
If you configured the ims_aka option, you must also configure sip-interfaces with an ims-aka-profile entry. 3 E-Cz7.4.0 E-Cz7.4.0m1

27795586

When running E-Cz8.1.0 over Hyper-V, and you set the process-log level to DEBUG, the system can become unstable or stop responding. The system requires a reboot.

Workaround: Do not enable process-log level DEBUG.

3 E-Cz8.1.0 S-Cz8.2.0

28475320

When running E-Cz8.1.0M1 on the Acme Packet 3900, IPSec functionality is not available. 2 S-Cz8.1.0 S-Cz8.2.0
32849192 The Data Integrity entitlement does not work properly, sometimes introducing system instability. Do not enable the Data Integrity entitlement. 2 S-Cz9.0.0 S-Cz9.0.0p1
34233796 T.38 transcoding is not available on the Acme Packet 3950 and Acme Packet 4900 platforms. 2 S-Cz9.0.0 S-Cz9.0.0p5
The following Known Issues and Caveats do not occur in this release. They are listed here for tracking purposes.
ID Description

30612465

On Virtual platforms, the OCSBC is not forwarding traffic transcoded to EVS or Opus codecs if you have configured the applicable policy with a forced ptime of 60ms.

25954122

Telephony fraud protection does not black list calls after a switchover.

Workaround: Activate the fraud protection table on the newly active server.

31162394 Running SIPREC on the Acme Packet 4600 over 1G interfaces may result in system instability.

Workaround : Do not egress traffic out of a physical interface that exceeds the bandwidth of the physical media capacity. You should determine the amount of egress media traffic and the amount of intercepted traffic on that interface. The intercepted traffic could be any recorded traffic on the interface like (SIPREC, LI, and remote packet trace).

26598075

When running on the Acme Packet 4600, the OCSBC sends a 200OK with IPv4 media address for call flows with offerless INVITES and the OCSBC configured with add-sdp-invite=invite and ALTC configured for IPv6 on the egress.

26559988

In call flows that include dual ALTC INVITEs from the callee, and subsequent Re-INVITEs that offer an ALTC with IPv6 video, the OCSBC may not include the m lines in the SDP presented to the end stations during the Re-INVITE sequence. This results in the call continuing to support audio, but not video.

26260953

Enabling and adding Comm Monitor config for the first time can create a situation where the monitoring traffic (IPFIX packets) does not reach the Enterprise Operations Monitor.

Workaround: Reboot the system.

28748784 When operating as a VNF and using Mellanox interface cards, the OCSBC does not support outbound ICMP.
30794993

The SBC might display an excessive number of debug messages after an HA switchover, if you configured both X123 LI and IKEv2/IPSec with IPv6 security policies.

23756306

When you configure the session-router with an operation-mode of session, it does not correctly clear sessions.

21805139

RADIUS stop records for IWF calls may display inaccurate values.

26136553

The SBC can incur a system-level service impact while performing a switchover using "notify berpd force" with an LDAP configuration pointing to an unreachable LDAP server.

Workaround: Ensure that the SBC can reach the LDAP server before performing switchover.

28770472 ACLI Users will receive an error on the output of the show registration sipd by-user command.

29999832 and 30194470

32062551 Virtual SBC platforms may incorrectly assess link status thereby causing major health degradation and triggering a failover.
30595413 The IKEv2/IPSEC negotiation fails while using TRANSPORT MODE and different IP’s for IKE and SIP interfaces.

23253731

After an HA switchover, the new standby SBC retains some IMS-AKA subscriber TCP sockets. You can clear these sockets by rebooting the SBC.
29005944 On Acme Packet hardware in an HA configuration, with a large number of IMS-AKA endpoints, the standby is unable to synchronize, and when rebooted goes OOS.

27031344

When configured to perform SRTP-RTP interworking, the SBC might forward SRTP information in the SDP body of packets on the core side, causing the calls to terminate.

Workaround: Add an appropriately configured media-sec-policy on the RTP side of the call flow. This policy is in addition to the policy on the SRTP side of the call flow.

30520181

When performing large numbers of simultaneous registrations, such as during a registration flood, the OCSBC may become unstable and stop responding when it exceeds 200k IMS-AKA subscriber registrations.

ACMECSBC-23446

24809688

Media interfaces configured for IPv6, and using different VLANs that operate over different infrastructures, including VoLTE and 3GPP, are not supported.
28639227 When operating as a VNF and using Mellanox interface cards, the OCSBC does not support SCTP transport.
28906914 For transcoding use cases, the G711/G729 codec pair might experience unstable performance when each DSP has greater than 500 transcoding sessions.
N/A The T.140-Baudot Relay is not excluded from supported features with pooled transcoding.
N/A When operating as a VNF deployed in an HA configuration, the OCSBC does not support IPSec.