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SBC audio codes one way audio issue

SBC audio codes one way audio issue

SBC audio codes one way audio issue

Having an audio issue with SBC and avaya. I can call internal (4 digits) to a a extension configured to hit SBC trunk with no issue calls sound great, external call (10) digits can only be heard, cannot hear. Firewalls on the avaya/session seems to be fine. I have changed the RTP port spacing and did not help.

I just want to add that internal calls from our pbx from sip or ip work but digital phones do not.(Still not working off pbx)
15:19:52 SIP<SIP/2.0 180 Ringing
15:19:52 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:19:52 SIP<SIP/2.0 180 Ringing
15:19:52 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:19:53 SIP<SIP/2.0 180 Ringing
15:19:53 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:20:02 SIP<SIP/2.0 200 OK
15:20:02 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:20:02 SIP>ACK sip:;x-i=3dd6b45e-da31-432c-b0df
15:20:02 SIP>-ed77e7c5594d;x-c=588cd281769955d7b563b791f55ca3eb/s/1/
15:20:02 SIP>8308f13463904fa3ab0637fedb054977;gsid=80c2fc46-8ace-4a0
15:20:02 SIP>1-85ef-5ea52a4c0000 SIP/2.0
15:20:02 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:20:02 SIP>PUBLISH sip:+5186294132@hvcc.edu SIP/2.0
15:20:02 Call-ID: 0d0234e8aceea1ccef5ea52a4c00
15:20:02 active station 4132 cid 0x3abc
15:20:02 Connected party uses public-unknown-numbering
15:20:02 SIP<SIP/2.0 404 Not Found (No route available)[/b][/highlight]
15:20:02 Call-ID: 0d0234e8aceea1ccef5ea52a4c00
15:20:10 SIP>BYE sip:;x-i=3dd6b45e-da31-432c-b0df
15:20:10 SIP>-ed77e7c5594d;x-c=588cd281769955d7b563b791f55ca3eb/s/1/
15:20:10 SIP>8308f13463904fa3ab0637fedb054977;gsid=80c2fc46-8ace-4a0
15:20:10 SIP>1-85ef-5ea52a4c0000 SIP/2.0
15:20:10 Call-ID: 80c2fc468aceea1c8ef5ea52a4c00
15:20:10 idle station 7237 cid 0x3abc
15:24:02 TRACE COMPLETE station 7237 cid 0x0

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