Cisco ATA

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Cisco ATA Fax Settings

The settings below are to be made on a Cisco analog adapter such as the SPA112.

On the SIP server side, you do not want to allow direct media.

Network Settings

NAT Keep Alive Enable: Yes
Network Jitter Level: very high
Jitter Buffer Adjustment: No
Restrict Source IP: Yes

Feature Settings

Call Waiting Serv: No
Three Way Call Serv: No

Fax Settings

FAX Passthru Method: ReINVITE
FAX T38 ECM Enable: Yes
Echo Canc Enable: No
FAX Enable T38:	Yes
FAX T38 Redundancy: 3
Fax Tone Detect Mode: Callee Only