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Old 04-28-2016, 08:59 AM
zicca zicca is offline
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Join Date: Mar 2012
Posts: 2
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Default transfer REFER over sip trunk IP Office

Hello, I have an IPO 9.1 with a sip trunk to an IVR. This answers the call and after that transfers to an extension. The transfer allways fail and IPO send a sip/2.0 481 call leg/transaction does not exist.
I read that ipo doesn´t support blind transfer over sip trunk. Is this really?

IPO: 172.16.99.200:5060
IVR: 172.16.99.201:5080


extension 2048 call to 2555 (shortcode to sip trunk) and the IVR wants to transfer to 2022 with REFER

15:55:42 179045044mS SIP Call Rx: 18
REFER sip:2048@172.16.99.200:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 172.16.99.201:5080;branch=z9hG4bK-d87543-3b31095555533328-1--d87543-;rport
Max-Forwards: 70
Contact: <sip:2555@172.16.99.200>
To: "2048"<sip:2048@172.16.99.200>;tag=c2138128ede4e6f c
From: <sip:2555@172.16.99.200>;tag=9b6e8477
Call-ID: 2199291a97490c6dd6942eeb803df65d
CSeq: 3 REFER
Refer-To: <sip:2022@172.16.99.200:5060>
Referred-By: <sip:2555@172.16.99.200>
Content-Length: 0

15:55:42 179045045mS Sip: ac1063c800000778 18.1912.0 299 SIPTrunk Endpoint(f18ad434) Blind transfer is not allowed
15:55:42 179045046mS SIP Call Tx: 18
SIP/2.0 481 Dialog/Transaction Does Not Exist
Via: SIP/2.0/UDP 172.16.99.201:5080;branch=z9hG4bK-d87543-3b31095555533328-1--d87543-;rport
From: <sip:2555@172.16.99.200>;tag=9b6e8477
Call-ID: 2199291a97490c6dd6942eeb803df65d
CSeq: 3 REFER
Supported: timer
Server: IP Office 9.1.6.0 build 153
To: "2048" <sip:2048@172.16.99.200>;tag=c2138128ede4e6fc
Content-Length: 0


Thanks a lot.
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