[SR-Users] Add Header on cancel

[Alex Balashov]

On 05/20/2010 10:27 AM, Alex Rendour wrote:

> Is it possible to add an header reason in a cancel?

I don't know of anything in RFC 3261 prohibiting additional headers in 
any initial request.

> We receive a CANCEL without header reason and we need to forward to
> another SIP proxy with the reason header?
>
> We use this code in my conf:
> if(is_method("CANCEL"))
> {
> if(!is_present_hf("Reason:"))
> {
> xlog("L_ERR", "reason missing");
> append_hf("reason: Q.850; cause=31\r\n");
> xlog("L_ERR", "add raison");
> }
>
> }

Does it work?

-- 
Alex Balashov - Principal
Evariste Systems LLC
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