F-1124 Vocoder information in CDR (Call Data Record)

 

Overview:

Feature 1124 reports the local media capabilities, remote media capabilities, and the Codec Priority in the radius CDR.

The Remote Media Capabilities and the CODEC information is received in the SDP portion of the SIP message. Within the SDP is the "m=" line. This line displays the Remote Media Capabilities and the CODEC information from the remote side. The Local Media Capabilities are read from the IP Profile in the configuration. This information is written to the CDR andsent to the RADIUS server in the accounting message as a vendor specific attribute.

 

 

Example of "m" line in SDP

 

v=0

o=- 1643042763 1643042846 IN IP4 10.129.39.111

s=eyeBeam

c=IN IP4 10.129.39.111

t=0 0

m=audio 7118 RTP/AVP 0 3 8 18 5 101

a=alt:1 1 : A95B1E03 000000F5 10.129.39.111 7118

a=fmtp:101 0-15

a=rtpmap:101 telephone-event/8000

a=sendrecv

 

 

Newest Vendor Specific Attributes (CDR) for radius

Note: In software build 10.5.3 the word Cantata in each of the Vendor Specific Attributres (VSA) has been replaced with the word Dialogic. All VSA names prior to software 10.5.3 will have Cantata in the name and all VSAs from software 10.5.3 and beyond will have Dialogic in the name.

 

Attribute Name

IETF

Attribute#

Description

Value

Dialogic-Voip-local-vocoders

57

Local Vocoder Information

String

Dialogic-Voip-remote-vocoders

58

Remote Vocoder Infomation

String

Dialogic-Voip-codec-priority

59

Remote Codec Priority List

String

 

 

Examples of CDR:

Attribute Name

Example of CDR:

Dialogic-Voip-local-vocoders

= "PCMA,G723,G729,telephone-event"

Dialogic-Voip-remote-vocoders

= "G729,G723,PCMU,PCMA,telephone-event"

Dialogic-Voip-codec-priority

= "Local"

 

Note: If the inbound call contains multiple codecs and the IP bearer profile contains multiple codecs then the codec selected is first match based on the codec priority.