Enable and configure T38 faxing on the Adtran Total Access 900 Series Gateway

Posted: January 13, 2012 in Adtran, System Configuration, VoIP Gateway
Tags: , ,

As with most enterprise equipment the web GUI is usually either incomplete or full of bugs. (I got locked out of gateway once when trying to set the password through the web GUI)

In the Adtran Total Access web GUI you can enabled T38 faxing by checking the T38 check box under the T1 trunk.

While this does enable T38 it does not allow for the full configuration.

Here is a list of all the T38 options available through the terminal:

  • modem-passthrough
  • t38
  • t38 error-correction [fec | redundancy]
  • t38 redundancy [high-speed | low-speed] <value>
  • t38 max-rate <value>
  • t38 fallback-mode g711
  • t38 max-buffer <value>
  • t38 max-datagram <value>

Samples config:

(config)#voice trunk t02
(config-T02)#modem-passthrough
(config-T02)#t38
(config-T02)#t38 redundancy high-speed 3
(config-T02)#t38 redundancy low-speed 2
(config-T02)#t38 fallback-mode g711
(config-T02)#t38 max-rate 9600
(config-T02)#exit

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