Dial Patterns & E.164



the Incredible PBX (VoIP without fees)

The Michigan Telephone blog, for a blog named “…Telephone blog” this guy posts some long wined opinions on non-techy stuff, but other than that it is a great resource with a plethora of tutorials & links to Fee-less Telephony gadgetry and services.

Click here for an online Internet site that will translate your GoogVoice account into being an accessible SIP trunk. A Key benefit here is that once you point your Obi to it instead of directly GoogVoice, caller ID CNAM database dip info (i.e. incoming caller names) should begin to display on your home phone when called.

Product pages of key free/open PBX’s:
PBX in a Flash
Free PBX
FreeSwitch and it’s highly reviewed Cookbook

And of course, no VoIP reference blog would be complete without referencing Nerd Vittles! and the one and only Incredible PBX!

Troubleshooting VoIP:
NAT no audio fixed:

Wireshark captures:

yum install wireshark

Run the following commands on your PBX to capture all traffic, SIP (signaling) and RTP (audio), between the PBX and your provider’s server into file /root/my.cap. Based on the options used below, this file can get very large very fast if you have lots of simultaneous calls! Type Ctrl-C after making a phone call to stop the capture.
tshark host server.provider.com -w /root/my.cap

Run the following command to compress your capture file my.cap into a compressed my.cap.gz file:
gzip /root/my.cap

From your Windows PC, run the following to copy that capture file from your PBX’s IP address to your Windows PC’s C: drive. You will be prompted for the PBX’s root password.
pscp root@ C:\