Increase SSRC changes allowed in a SRTP stream

By default, SBC allows only seven SSRC changes and blocks SRTP streams with new SSRC on the same port. This happens for both audio and video streams. If you revert to plain RTP there are no limitations on the number of SSRC streams on the same RTP port. To increase the limit of SSRC changes allowed by SBC, configure the allowed-ssrc-change-limit under realm-config.

• Default: 7
• Values: Min : 7 / Max : 15

Adding allowed-ssrc-change-limit option

To change the default value of allowed-ssrc-change-limit:

ORACLE# configure terminal
ORACLE(configure)# media-manager
ORACLE(media-manager)# realm-config
ORACLE(realm-config)# options +allowed-ssrc-change-limit=<value>

If you type the option without the plus sign, you overwrite any previously configured options. To append the new option to the options list, prepend the new option with a plus sign as shown in the previous example.