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Rightfax 9.1 using CallManager 6.1 SIP Trunks

Will Rightfax support faxing with CallManager 6.1 SIP Trunks and a CM H.323 gateway pointing to the fax Server. PSTN terminates directly on CM SIP Trunks. Would like to use T.38 but could provide a IOS router between CM and Rightfax to provide a PRI connection.

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New Member

Re: Rightfax 9.1 using CallManager 6.1 SIP Trunks

SIP Trunk using G711 works with and without MTP

SIP Trunk using G729 works without MTP

SIP Trunk using G729 does not work with MTP enabled, even with transcoders.

SIP trunk does not work with and not design to work with G729 with MTP until CM 6.1

call should still be able to go thru but without SDP in the invite msg

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