Member since ‎07-02-2018

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I am attempting to use a 2811 router as a SIP / PSTN gateway. SIP is from our PBX. PSTN is one of the big guys.The 2811 connects to the PSTN with a VWIC-2MFT-T1.Calls work great. However, no DTMF digits are transmitted to the PSTN. That is, you can c...