[asterisk-users] Problem with Polycom forwarding

[Sherwood McGowan]

Mike wrote:
>>> I am having trouble with Polycom forwards and Asterisk.  Basically, I
>>> have no clue on how to force callerid or even custom variables (set
>>> using SetVar in the sip.conf file) on the transfered call.
>>>
>>> For example, I set a variable called var_a to "foo".  When the call
>>> comes in, the variable is set.  The Polycom is set to forward the call
>>> to 555-555-1234.  When that second "leg" of the same is done, var_a is
>>> unset.
>>>       
>> Did you try _var_a? Iirc you need to prepend it with an underscore to
>> make the variable persistent.
>>
>> Regards,
>> Patrick
>>
>>     
>
>
> I had not tried (I did not know that), but it did not help.
> Problem is a call coming in to the Polycom is coming in to a registration,
> which is linked to a sip.conf entry.  If it's a normal registration, all is
> fine.  If it's a forward, it doesn't work.
>
> Maybe the problem comes from the fact that it's a variable in my sip
> database (I am using realtime SIP entries) and not in the diaplan per say.
>
> My setvar column is this:
> internal_callerid=blabla <123>;did=5555551234
>
> I tried adding underscores before "did" (as in: internal_callerid=blabla
> <123>;__did=5555551234) but that didn't help.
>
> Mike
>
>
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You're close, it's not a fact of being persistent, it's inheritance 
that's the issue. Using a single underscore sets future spawned channels 
to have access to the variable