[asterisk-users] Is there a way to test SIP credentials withoutmaking a call?

[Rob Hillis]

Eric Chamberlain wrote:
>> Is there a particular reason you /can't/ register?  It would seem that
>> registration would provide the functionality you require, even if  
>> you're
>> only making outbound calls.
>>     
> In the case of a server like Asterisk, wouldn't sending a register  
> disrupt the flow of inbound calls until the UA that normally handles  
> inbound calls re-registers?

Are you using the same credentials as existing extensions to make calls 
from different extensions?  That would seem to be a particularly bad 
idea.  You should be configuring /one/ sip extension per SIP phone.  
Those extensions that handle outgoing calls only could be put in a 
different number range, or have a letter prefixed or suffixed to the 
extension, but you should /not/ be using one configured extension for 
two different purposes.