CUBE SIP RINGING WITH SDP

patcbr600 · ‎09-26-2011

Hi all,

Hi have a CUBE with 12.4.24T that as the folowing issue :

When i call to the same number i have two diferent behavior from the SIP provider and from the CUBE.

The first call i have the folowing call flow and the call is OK

Receive INVITE(SDP) from ALU 4400 (G711u)

SEND trying to ALU 4400

Send SIP INVIDE(SDP) to SIP PROVIDER (G711u)

Receive trying from SIP Provider

Receive 183 with SDP from privider (G711u)

Send 183 with SDP to ALU 4400 (G711u)

Receive 180 with SDP from privider (G711u)

The second call i have the folowing call flow and the call reject from the CUBE

Receive INVITE(SDP) from ALU 4400 (G711u)

SEND trying to ALU 4400

Send SIP INVIDE(SDP) to SIP PROVIDER (G711u)

Receive trying from SIP Provider

Receive 180 with SDP from privider (G711u)

Send 183 with SDP to ALU 4400 (G729)

Send a Cancel to the Provider

Send a SIP/2.0 500 Internal Server Error to the ALU 4400

Is seams that the CUBE is not converting the 180 with SDP to 183 with SDP.

Does any ibne have the same issue ?

Thanks

patcbr600

Steven Smith · ‎09-27-2011

Receive 180 with SDP from privider (G711u)

Send 183 with SDP to ALU 4400 (G729)

Is there some transcoding setup here? Are you doing media flow through? My guess is that it isn't a problem going from 180 to 183, but a problem with the codecs.