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Knowledge Base / Software / Why am I only getting audio in one direction using SIP?

Why am I only getting audio in one direction using SIP?
Views: 5216, Votes: 3

Posted:
15 Mar, 2006 - Klopfenstein C.

Updated:
03 Oct, 2006 - Support D.
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For one way audio on SIP phones make sure both phones have 'canreinvite' set to no in sip.conf. Also make sure any NAT in front of the phones has ports 10,000 - 20,000 open.
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