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New Member

Voip : Cannot Transfer Call H323 and SIP

Hello,

I'm using CUCM5.1 and a Voice Gateway 3845.

The call is like this :

CUCM <- SIP -> RtCisco3845 <-H323-> H323 Provider International

My problem is that I cannot transfer the International Call.

For example :

I call my mobile phone with a soft phone (registerd into a CUCM), the call is possible and the conversation can start.

But when I want to transfer the call to another IPPhone, It's not possible.

I can push the button Transfer but nothing happens.

Any issue?

Thank you

1 REPLY
New Member

Re: Voip : Cannot Transfer Call H323 and SIP

Sounds like MTP not setup for the H323 to SIP conversion of CODEC mismatch. Try using transcoders on the gateway. If you have DSP on them.

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