Transfer from Experience Portal to CM Via SIP

[zein1]

Hi All,

I am making a new configuration to switch from H323 to SIP via Session Manager. Till now I can get the call from 3rd Party SBC to Session Manager and from Session Manager to Experience Portal, Where Experience Portal plays an IVR App then it redirects the call to a VDN.

However, in the last step the blind transfer fails from the IVR App on Experience Portal to the VDN.
For Example, the IVR app transferes to VDN 5000 then experience portal translates this to [email protected] then it is supposed to get back to SM for reidirection to CM but it fails here.
Any one have an idea where the problem could be?

[mlombardi1]

Is the transfer done via a SIP REFER message? Is there a dial pattern defined in SMGR for 5000 that routes to CM?

[zein1]

Is the transfer done via a SIP REFER message? Is there a dial pattern defined in SMGR for 5000 that routes to CM?

Yes, It's a transfer via SIP REFER message and I have added a dial pattern for 5000 that routes to CM but still fails.

[mlombardi1]

What is SM doing? Dropping the message and issuing a 4xx error? Check the Refer-To header inside the REFER.

[zein1]

Actually I'm getting 202 Accepted for the REFER Message !
Refer-To Header:
Refer-To: <sip:[email protected];user=phone>

[mlombardi1]

SM should be passing the REFER to CM who will issue a 202 Accepted response if the extension in the Refer-To header is reachable. Your Refer-To shows EP attempting a transfer to 86663 but you're looking for 5000? Sounds like EP is the issue.

[zein1]

No I was just giving 5000 as an example. The EP application has many VDNs to route to but I have configured 86663 to be routed to the CM, however; I have done a trace on the CM and it's not getting the call at all.

Does Session Manager have to be configured by a differenet way to handle the Refer-To message other than the INVITE?

[mlombardi1]

It shouldn't. Run traceSM and post the results here. Need to see a ladder diagram of the messages.

[zein1]

SM-02 VM-MPP5-SV SM100 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------22:00:22.035 |--INVITE-->| | | (108) T:33312736 F:01006622801 U:33312736 P:terminating
22:00:22.036 |<--Trying--| | | (108) 100 Trying
22:00:22.038 |<--Server -| | | (108) 500 Server Link Monitor Status Down
22:00:22.039 |----ACK--->| | | (108) sip:[email protected]:5060
22:00:22.042 |--INVITE-->| | | (108) T:33312736 F:01006622801 U:33312736 P:terminating
22:00:22.079 |<--Trying--| | | (108) 100 Trying
22:00:22.081 | |--INVITE-->| | (108) T:33312736 F:01006622801 U:33312736 P:terminating
22:00:22.091 | |<--Trying--| | (108) 100 Trying
22:00:22.125 | |<--Session-| | (108) 183 Session Progress
22:00:22.127 |<--Session-| | | (108) 183 Session Progress
22:00:22.143 |---PRACK-->| | | (108) sip:[email protected]:5060
22:00:22.144 | |---PRACK-->| | (108) sip:[email protected]:5060
22:00:22.154 | |<--200 OK--| | (108) 200 OK (PRACK)
22:00:22.154 |<--200 OK--| | | (108) 200 OK (PRACK)
22:00:22.568 | |<--200 OK--| | (108) 200 OK (INVITE)
22:00:22.603 |<--200 OK--| | | (108) 200 OK (INVITE)
22:00:22.624 |----ACK--->| | | (108) sip:[email protected]:5060
22:00:22.625 | |----ACK--->| | (108) sip:[email protected]:5060
22:00:50.053 | |<---REFER--| | (108) sip:[email protected]:5060
22:00:50.054 |<---REFER--| | | (108) sip:[email protected]:5060
22:00:50.064 |--Accepte->| | | (108) 202 Accepted
22:00:50.065 | |--Accepte->| | (108) 202 Accepted
22:00:50.257 |--NOTIFY-->| | | (108) <sip:[email protected]> Ev:refer
22:00:50.258 | |--NOTIFY-->| | (108) <sip:[email protected]> Ev:refer
22:00:50.269 | |<--200 OK--| | (108) 200 OK (NOTIFY)
22:00:50.270 | |<----BYE---| | (108) sip:[email protected]:5060
22:00:50.270 |<--200 OK--| | | (108) 200 OK (NOTIFY)
22:00:50.271 |<----BYE---| | | (108) sip:[email protected]:5060
22:00:50.278 |----BYE--->| | | (108) sip:[email protected]:5060
22:00:50.279 | |----BYE--->| | (108) sip:[email protected]:5060
22:00:50.281 | |<--200 OK--| | (108) 200 OK (BYE)
22:00:50.281 |--200 OK-->| | | (108) 200 OK (BYE)
22:00:50.282 |<--200 OK--| | | (108) 200 OK (BYE)
22:00:50.282 | |--200 OK-->| | (108) 200 OK (BYE)

[jacob207]

Were you able to resolve this issue? I am having a very similar problem.