The following instructions are working great for my Linksys PAP2T, which connects to Gizmo5 and Google Voice.
I was lucky enough to sign up for Gizmo5 before they were acquired by Google and have been using it to connect out from Google Voice for a while. I’m having problems with initiating calls to my VoIP line from Google Voice, but outbound calls don’t seem to have problems. I think that there are integration problems (as of this writing in early March, 2010) because I think the Gizmo5 servers moved to a Google datacenter recently.
- System
- DHCP, IP, and DNS: <<SET FOR YOUR NETWORK>>
- Primary NTP Server: pool.ntp.org <<OR YOUR PREFERRED NTP SERVER>>
- Secondary NTP Server: pool.ntp.org <<OR YOUR PREFERRED NTP SERVER>>
- Regional
- Ring Waveform: Sinusoid
- Time Zone: <<SET YOUR TIMEZONE>>
- Daylight Saving Time Rule: start=3/8/7;end=11/1/7;save=1
- Line 1
- Line Enable: Yes
- Proxy: proxy01.sipphone.com
- Display Name: <<YOUR NAME>>
- User ID: <<YOUR GIZMO5 #, Starting with 1>>
- Password: <<YOUR GIZMO5 PASSWORD>>
- DTMF Process INFO: No
- DTMF Process AVT: No
- DTMF Tx Method: AVT
It involved a bit of trial and error to get things working, but this configuration appears to be very solid.
Edit (2010-06-11): I changed the DTMF Tx Method to AVT. When set to InBand, I was unable to access several conference call bridges and other phone systems that relied on DTMF. Since making that change, all has worked well.
