Can Brekeke modify the contents of a REFER?

7 posts · Brekeke SIP Server Forum

lperezu 2013-12-26 18:24 UTC Original post

1. Brekeke Product Name and Version: 3.2.4.3/367

2. Java version: 1.7.0_25

3. OS type and the version: Linux

4. UA (phone), gateway or other hardware/software involved:

5. Your problem:

Can Brekeke modify the contents of a REFER?
I Need Alter the Header Refer-to like this:

Refer-To: <sip:45901@192.168.20.3>

to

Refer-To: <sip:45901@192.168.20.3?Add_a_String>

Tata 2013-12-27 00:38 UTC

Is it a REFER sent in a dialog created with an INVITE?

lperezu 2013-12-27 19:29 UTC

Yes.

davi 2013-12-28 01:53 UTC

Add the following in the [Configuration]->[Advanced] page once, and restart the SIP Server.

Code:

&net.sip.outside.dialog.pattern = ^REFER|^NOTIFY

Now you can catch REFER with DialPlan even if it is sent in existing dialog.
Let you write DialPlan rule to catch REFER and modify it as you want.

epascual 2015-09-21 11:41 UTC

Now I have the same problem but this solution does not work. Do I need to do anything else?

Haddas 2015-09-21 18:11 UTC

Does REFER share same Call-ID with INVITE?

epascual 2015-09-22 10:28 UTC

Yes.
This is the INVITE

INVITE sip:314006@192.168.1.206:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.4:5060;branch=z9hG4bK1e3cdc3befa6-30-17c7e5
From: "314035" <sip:314035@192.168.1.4>;tag=b3b821584p
To: <sip:314006@192.168.1.4>
Max-Forwards: 18
Contact: <sip:314035@192.168.1.4:5060>
Call-ID: b40aef08-63ff4164-52318c58-6b2461f
User-Agent: Brekeke PBX
CSeq: 1 INVITE
Allow: INVITE,ACK,BYE,CANCEL,INFO,MESSAGE,REFER,NOTIFY,SUBSCRIBE,UPDATE,PRACK
Subject: DA/IDA call
Priority: non-urgent
Content-Type: application/sdp
Content-Length: 141

v=0
o=bk 914 1 IN IP4 192.168.1.4
s=-
c=IN IP4 192.168.1.4
t=0 0
m=audio 30110 RTP/AVP 0
a=sendrecv
a=rtpmap:0 PCMU/8000
a=ptime:20

This is REFER

REFER sip:314035@192.168.1.4:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.206:5060;rport;branch=z9hG4bKPj0976bf2ab5d74cf28d424081063cb468
Max-Forwards: 19
From: <sip:314006@192.168.1.4>;tag=683869a866f54f4896a3ba79041ee27f
To: "314035" <sip:314035@192.168.1.4>;tag=b3b821584p
Contact: <sip:314006@192.168.1.206:5060>
Call-ID: b40aef08-63ff4164-52318c58-6b2461f
CSeq: 15351 REFER
Event: refer
Expires: 600
Accept: message/sipfrag;version=2.0
Allow-Events: presence, message-summary, refer, conference
Refer-To: <sip:314004@192.168.1.204?Require=replaces&Replaces=3519d734a73b4f8e91d10d9fe67e2f1a%3Bto-tag%3Ddb53012c28d34f4e9045cfc953fc4221%3Bfrom-tag%3D7fba56d3304e4d63bb25bfeb517655a1>
Referred-By: <sip:314006@192.168.1.4>
User-Agent: U5K-UA/1.0.0
Content-Length: 0