[OpenSIPS-Users] doubled-up connection IP with use_media_proxy()

Jeff Pyle jpyle at fidelityvoice.com
Fri Apr 22 15:13:41 CEST 2011

Hi Saúl,

On 4/22/11 4:26 AM, "Saúl Ibarra Corretgé" <saul at ag-projects.com> wrote:

>Hi Jeff,
>On 04/21/2011 11:14 PM, Jeff Pyle wrote:
>> I went over my config and I think the logic is sound. I'll verify it on
>> a dev box tonight once traffic is low.
>> The call flow is serial forking from one carrier gateway to another when
>> the first sends a 503.
>>     * load prefs for first gateway
>>     * use_media_proxy()
>>     * t_relay() INVITE to first gateway
>>     * receive 503
>>     * end_media_session() in failure_route[]
>>     * load carrier prefs for second gateway
>>     * use_media_proxy()
>>     * t_relay() INVITE to second gateway
>>     * receive 400 (because of jacked up c= line)
>>     * end_media_session()
>> The dispatcher log seems to jive with this. I've got a "remove" command
>> from the end_media_session() after the first gateway, and the subsequent
>> stats (all 0s), and a "remove" command from the second
>> end_media_session() and more stats. I think the commands are hitting
>> correctly.
>> Is it not correct to use(), end(), use(), end()? Once I use(), is it
>> impossible to end()?*
>Depends on how you do that. OpenSIPS (1.x.x) does not modify the
>original message it appends a lump, which is a modification indicator
>that will be made when the message is going to be sent out.
>That said, if you call use(), end(), use() *before* sending the message
>out you'll be in trouble.

So as long as I t_relay() the message between the first use() and the
end(), or the end() and the second use(), all will be well?

- Jeff

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