31 Mar
2023
31 Mar
'23
10:07 a.m.
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### Description
Hi Team,
I am using kamailio as load balancer in my organization and I want to manipulate the
cancel request from and to headers.
But kamailio is changing the requests when it sends out and its still using the one it
receives from other end.
How do I change the kamailio to change the to domain when it sends the cancel request
out?
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### Troubleshooting
Code to handle cancel
if (is_method("CANCEL")) {
if (ends_with($td, "incoming.req.com")) {
xinfo("Updating CANCEL request");
uac_replace_to("sip:<number>@manipulated.to.domain.com");
$uac_req(turi)="sip:<number>@manipulated.to.domain.com";
append_hf("To:
<"sip:<number>@manipulated.to.domain.com">");
#uac_req_send();
xinfo("Updating CANCEL request TD: $td");
}
if (t_check_trans()) {
route(RELAY);
}
exit;
}
SIP message:
CANCEL sip:<number>@mycompany.net SIP/2.0
Via: SIP/2.0/UDP <IP>;branch=z9hG4bK787.76dc73a7e90664fa84d8571e1281161d.0
Max-Forwards: 69
From: <sip:<fromNumber>@incoming.req.com>;tag=QQ8NBSygKDa0c
To: <sip:<toNumber>@incoming.req.com>
Call-ID: 1cc67943-bb08-4e52-9694-cb33210e7b3b
CSeq: 65568792 CANCEL
Content-Length: 0
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
#### Reproduction
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#### Debugging Data
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#### Log Messages
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#### SIP Traffic
<!--
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```
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### Possible Solutions
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### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
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```
* **Operating System**:
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```
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