Codec Mapping

The Oracle® Enterprise Session Border Controller uses the following mapping scheme when converting media specifications between H.245 (used in H.323) and SDP (used in SIP).

Media coming into the Oracle® Enterprise Session Border Controller one way exits the system in the corresponding way as specified in the following table. For example, media coming into the Oracle® Enterprise Session Border Controller as H.245 type g711Ulaw64k exits the system as media type PCMU.

H.245 Type SDP Media Type
g711Ulaw64k PCMU
g711Ulaw56k PCMU
g711Alaw64k PCMA
g711Alaw56k PCMA
g726 G726-32
g7231 G723
g722 G722
g728 G728
g729wAnnexB G729
g729 G729

fmtp:18 annexb=no

h261VideoCapability H261
h263VideoCapability H263