I'm not using lcr so i'm not sure whether load_gws and next_gws will return the same gw for INVITE and CANCEL but it is so be sure to use t_relay to catch the CANCEL.

SER 2.X (I think from 2.1 but may be 2.0 also has it) has a t_relay_cancel that tries to match incoming CANCEL with transactions in memory so the right (mmm more 3261 compliant but be more accurate term) action is taken.

Samuel

2008/10/6 Deepak <dlalmtl@gmail.com>

I am using version 0.9.6.

So all I do is that (pseudo-code)

if (method==CANCEL) || (method==INVITE) {

load_gws();

if next_gws()....

}

Will the fix it?

Thanks

On Mon, Oct 6, 2008 at 4:23 AM, samuel <samu60@gmail.com> wrote:

Which version of SER are you using? Latest ones have special config file functions to handle CANCELs.

As a basic idea, you should treat CANCEL as if they were INVITEs and SER will take care of the rest.

Hope it helps,
Samuel.

2008/10/5 Deepak <dlalmtl@gmail.com>

Hi,
I have the following issue:

I am using lcr module to select a gw from a set of gw's based upon R-URI prefixes. All is working fine.

The issue is with a CANCEL that is sent by the UAC that originates the call before a dialog can be established. This implies that the CANCEL cannot be routed to the correct GW since SER see a CANCEL and simply returns "487 request terminated".

How can I forward the CANCEL to the GW the the original INVITE was forwarded to?

Any help appreciated.....

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