Bria doesn't offer PCMU/A G.711 in SDP

[general lee]

Hi,

I need Bria to offer G.711 in its SDP. I tested using Bria to Bria, Xlite to Bria and Xlite to Xlite with G711uLaw and G711aLaw enabled, also all codecs enabled and couldn't get G.711 to be offered in the SDP. I also tried changing my bandwidth settings using different high internet connection speeds.

I would appreciate if someone could either explain why G.711 is not being offered and point me in the right direction to gettting it fixed?

Thanks,

U 2009/11/16 15:01:02.412197 123.208.147.153:10502 -> 163.48.104.222:5060
INVITE sip:102@122.148.189.134:51065;nty=yes SIP/2.0.
Via: SIP/2.0/UDP 123.208.147.153:10502;branch=z9hG4bK-d8754z-1b62dd8f47c17c04-1---d8754z-.
Max-Forwards: 70.
Route: <sip:163.48.104.222;lr;ftag=1316a46f>.
Contact: <sip:103@123.208.147.153:10502;rinstance=63869cd50a719ee3>.
To: "test" <sip:102@sip.com>;tag=1316a46f.
From: <sip:103@sip.com>;tag=567c3436.
Call-ID: NjY5YjAzMzExZTA3MjMyZjE2MDY4MGU5ZmI0MzcxOTI..
CSeq: 2 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Supported: replaces.
User-Agent: Bria Professional release 2.5.3 stamp 53400.
Content-Type: application/sdp.
Content-Length: 355.
.
v=0.
o=- 9 3 IN IP4 123.208.147.153.
s=CounterPath Bria Professional.
c=IN IP4 123.208.147.153.
t=0 0.
m=audio 24744 RTP/AVP 0 8 101.

PCMU/A should be listed here

a=sendrecv.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
m=video 40320 RTP/AVP 115 34.
a=sendrecv.
a=rtpmap:115 H263-1998/90000.
a=fmtp:115 QCIF=1;CIF=1;I=1;J=1;T=1.
a=rtpmap:34 H263/90000.
a=fmtp:34 QCIF=1;CIF=1.

[Derek Jacobs]

G.711 is a "well known" codec and normally is not sent as a separate a line.
Is the RTPMAP listed in the media description line?

[general lee]

Thanks Derek,

I looked at the RFC and it states below that the SDP format that Bria specified below is correct:

m=audio 24744 RTP/AVP 0 8 101.
a=sendrecv.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.


PT encoding media type clock rate channels
name (Hz)
___________________________________________________
0 PCMU A 8,000 1
1 reserved A
2 reserved A
3 GSM A 8,000 1
4 G723 A 8,000 1
5 DVI4 A 8,000 1
6 DVI4 A 16,000 1
7 LPC A 8,000 1
8 PCMA A 8,000 1
9 G722 A 8,000 1
10 L16 A 44,100 2
11 L16 A 44,100 1
12 QCELP A 8,000 1
13 CN A 8,000 1
14 MPA A 90,000 (see text)
15 G728 A 8,000 1
16 DVI4 A 11,025 1
17 DVI4 A 22,050 1
18 G729 A 8,000 1
19 reserved A
20 unassigned A
21 unassigned A
22 unassigned A
23 unassigned A
dyn G726-40 A 8,000 1
dyn G726-32 A 8,000 1
dyn G726-24 A 8,000 1
dyn G726-16 A 8,000 1
dyn G729D A 8,000 1
dyn G729E A 8,000 1
dyn GSM-EFR A 8,000 1
dyn L8 A var. var.
dyn RED A (see text)
dyn VDVI A var. 1

Table 4: Payload types (PT) for audio encodings