When you set the variable or param in the gateway configuration it overrides variables set elsewhere in the call. Try removing the variable in the gateway configuration and setting that in the dialplan before bridging the call.

-BDF

On Apr 9, 2012 3:05 PM, "Nestor A Diaz" <nestor@tiendalinux.com> wrote:

Hi Guys,

I want to know if is possible to change the sip_from_user at the dialplan.

My current pstn sip provider needs the caller id to be set to one of the
numbers assigned to me, this way i can place the call using the
following options at the dialplan:

<extension name="local">
<condition field="${toll_allow}" expression="local"/>
<condition field="destination_number" expression="^9(\d{7})$">
<action application="set" data="effective_caller_id_number=12345678"/>
<action application="bridge" data="sofia/profile/$1@sipprovider.com"/>
</condition>
</extension>

The above works, also if i define a gateway as the following:

<include>
<gateway name="myprovider">
<param name="from-user" value="12345678"/>
<param name="proxy" value="sipprovider.com"/>
<param name="register" value="false"/>
<param name="ping" value="25"/>
</gateway>
</include>

and place the call using:

<action application="bridge" data="sofia/gateway/myprovider/$1"/>

the above woks too, but i am tied to the from_user i have defined.

So i wanted to use be able to change the from_user dinamically according
to my needs at the dialplan level, is that possible ? i have tried the
following but it doesn't work

<action application="bridge"
data="{sip_from_user=12345678}sofia/gateway/myprovider/$1"/>

Any suggestions ? or is not possible to define a gateway and change some
of its parameters in the dialplan ? i just want to use the ping
functionality and have something more organized.

Slds.

--
Nestor A. Diaz
Ingeniero de Sistemas
Tel. +57 1-485-3020 x 211
Cel. +57 316-227-3593
Tel. SIP: sip:211@tiendalinux.com
Email/MSN: nestor@tiendalinux.com
http://www.tiendalinux.com/
Bogota, Colombia


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