One thought on “Portech SIP-GSM Gateway In The Post”

  1. I have one of these and it has been a struggle. I have successfully configured it as an extension on Trixbox and PBXinaFlash but that requires 2 stage dialling. I have yet to figure out how to set it up as a trunk. I want to use it as a spare line on my shared tmobile plan and for calling from and to the office cell phones.

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