Asterisk

Open Source Communications Framework

Asterisk is one of the most widely deployed SIP switching platforms in the world, and is known to work very well with Power-T.38. In fact, some of our largest service provider customers have built their businesses on Asterisk and related Open Source telephony tools! The features available and configuration you will need varies widely by release, as we will detail in the sections below.

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Asterisk T.38 Support by Version

Asterisk 13
Asterisk 12
Asterisk 11
Asterisk 10
Asterisk 1.8
Asterisk 1.6
Asterisk 1.4
Asterisk 1.2
Supported Methods








T.38 Passthrough
T.38 Termination
Supported SIP Stacks








Chan_SIP
Chan_PJSIP
  • add_circle Asterisk 13 (LTS)

    This version supports both T.38 passthrough and T.38 termination. We have configuration instructions for both chan_sip and chan_pjsip, be sure that you're using the right configuration!

    • Chan_SIP:
    • Chan_PJSIP:
  •  add_circle Asterisk 12 (STD) 

    In Asterisk 12, a new SIP channel driver (chan_pjsip) was introduced.

  •  add_circle Asterisk 11 (LTS) 

    This version supports both T.38 passthrough and T.38 termination.

  •  add_circle Asterisk 10 (Standard) 

    This was the first release that included T.38 Fax Gateway Support.

     https://wiki.asterisk.org/wiki/display/AST/T.38+Fax+Gateway 
  •  add_circle Asterisk 1.8 
  •  add_circle Asterisk 1.6 

    T.38 Passthrough & T.38 Termination (receives faxes via ReceiveFax)

  •  add_circle Asterisk 1.4 

    T.38 Passthrough Only. T.38 Passthrough allows Asterisk to carry T.38 UDPTL from one T.38-speaking endpoint to another T.38-speaking endpoint. Asterisk does not modify the media.

  •  add_circle Asterisk 1.2 

    No T.38 capability at all.

 Why 5080?  Learn More  

Enter your SIP Username here. (This should be a DID assigned to your account that is available for registration. IE: 18043027000)
 Still Confused? Learn More! 

Enter the SIP Password for the SIP Username you entered above.
 Still Confused? Learn More! 

Create & Enter a username for your ATA (Extension Number).
 Still Confused? Learn More! 

Create & Enter a new, secure password for your ATA.
 Still Confused? Learn More! 

Enter your first DID here. Ensure that the "Dial/DIDX1" string points to the correct context.

Enter your second DID here. Ensure that the "Dial/DIDX2" string points to the correct context.