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Modify REFER SIP message Cisco 8961

willsupport
Level 1
Level 1

Hi,

we configured for our customer some 8961 ip phones with 3cx. We created the required templates and the calls are working fine.

The problem occur when someone wants to forward a call. The phone sends the following message:

REFER sip:x.x.x.x SIP/2.0

Via: SIP/2.0/UDP x.x.x.x:5060;branch=z9hG4bK38eaf9d1

From: <sip:xxxx@x.x.x.x>;tag=84802d77c0fd0010520724f9-20198d62

To: "xxxxxxxx"<sip:xxxxxxxx@xxxxxx:5060;nf=e>

Call-ID: OutOfDialog--0009-0eb9312f-33116ed5@x.x.x.x

Max-Forwards: 70

Date: Fri, 01 Jan 1982 00:15:53 GMT

CSeq: 101 REFER

User-Agent: Cisco-CP8961/9.4.2

Contact: <sip:xxxx@x.x.x.x:5060;transport=udp>

Referred-By: <sip:xxxxx@xxxxxxx>

Refer-To: cid:56458189@x.x.x.x

Require: norefersub

Proxy-Authorization: Digest username="xxxxxxxxxxxxxxx",realm="3CXPhoneSystem",uri="sip:x.x.x.x",response="a95853e3e5ee1986e6a14140230ff1e8",nonce="414d53596617ee4c52:4b0c678c53f75cc496fb6efe82e4ee4f",algorithm=MD5

Content-Length: 926

Content-Type: application/x-cisco-remotecc-request+xml

Content-Disposition: session;handling=required

Content-Id: <56458189@x.x.x.x>

 

And from the 3cx server i receive:

SIP/2.0 420 Bad Extension

Via: SIP/2.0/UDP x.x.x.x:5060;branch=z9hG4bK38eaf9d1

To: "xxxxx"<sip:xxxxxxxx@xxxxxxxxxxx:5060;nf=e>;tag=c80e5242

From: <sip:xxxxxx@x.x.x.x>;tag=84802d77c0fd0010520724f9-20198d62

Call-ID: OutOfDialog--0009-0eb9312f-33116ed5@x.x.x.x

CSeq: 101 REFER

Unsupported: norefersub

Content-Length: 0

 

Is there a way to delete or change that "Require" in the SIP message?

 

Thanks

Alessandro

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