Is there a standard way in which to send an INVITE message to an end point to force it 
to accept the call without ringing? This INVITE is needed to force the business 
desktop phone off-hook. If the phone has a speaker phone, it should be activated. This 
will allow implementation of standard PBX intercom/paging services using SIP phones.  
___________________________________
Roman Shpount, VP of Technology
aTelo, Inc. 







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