On 06/22/2012 12:05 PM, Ahmed Munir wrote:
Here is my setup; Fax machine -> PSTN -> Cisco Voice GW -> IP cloud -> Asterisk. As on Cisco Voice GW, T.38 fax already configured on SIP protocol.
Apparently your configuration of the 'Cisco Voice GW' was not successful, as it refused to accept a re-INVITE from Asterisk that wanted to switch the SIP channel to T.38 mode.
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