You probably saw this page, http://wiki.freeswitch.org/wiki/Codec_negotiation I am still learning here but how about experimenting with transcoding disabled, or setting absolute_codec_string (or codec_string) when bridging a call? Let us know how it goes. HTH, Joshua On Tue, Mar 22, 2011 at 6:11 AM, Dmitry Bely <dmitry.bely@gmail.com> wrote:
I have G722 and PCMU enabled for internal extensions and PCMU only for an external gateway. Inbound-late-negotiation parameter is set so then an incoming call arrives PCMU is used without transcoding. But it goes worse when transfer is involved:
call 1: gw <-- PCMU--> FreeSwitch <-- PCMU --> operator call 2: operator <-- G722 --> FreeSwitch <-- G722--> extension transfer (refer): gw <-- PCMU--> FreeSwitch <-- G722--> extension
Is it possible to renegotiate a codec during transfer to get rid of transcoding?
- Dmitry Bely
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