Acme Packet (MOSC)

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Change codec on INVITEs after REFER

edited Dec 23, 2018 4:06AM in Acme Packet (MOSC) 3 commentsAnswered

Hello,

I have a call flow that is originally setup as g711 and after it's transferred (REFER) the INVITEs need to advertise g729 as the primary codec.

Call Flow

Leg 1 = Agent makes an outbound call with EO INVITE with g711 (preference), g729. Carrier responds with g711

Agent -> SBC -> Carrier -> Customer

Leg 2 = Agent hangs up and the customer is transferred via REFER to  a survey vendor.  The survey only accepts g729.  The call is now between the customer (via the carrier) and the survey company.  Two INVITEs are sent out after the REFER to setup the call.  One to the carrier and the other to the survey company.

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