Do I need Asterisk?

My goal is to have a free single residential phone line.
Having read documents until my eyes bled I have FINALLY managed to get a Grandstream HT-386 working with sipgate. Although not completely free it is pretty cheap. The one caveat is that do to port forwarding problems I had to connect directly to the Comcast Modem/Gateway and use a 10.x.x.x from it instead of going through my Belkin router and switch to use my 192.168.0.x LAN. I don’t know how much of a problem that might be. Now, my questions:

  1. Do I even need Asterisk for what I am trying to achieve.

  2. It seems as though there are many free incoming services but few free outgoing. What do I need to change in order to use a free outgoing service, can you recommend any, and, what parameters do I need in order to use Asterisk server (or do I even need Asterisk for that matter). I have trixbox 2.6 installed and running. I so appreciate people with larger than average brains who give of themselves to help the rest of us. Here is my configuration and hardware specifications:

Specifications and Versions:

Canonical Hostname trixbox1.localdomain
Distro Name CentOS release 5.5 (Final)
Kernel Version 2.6.18-164.11.1.el5 (SMP)


Server PC:
Model Intel(R) Celeron(R) CPU 2.66GHz
CPU Speed 2.66 GHz

SMC 8014
Firmware Version 4.01.21-CCR

LAN Router:
Belkin f5d9230-4 Mimo Wireless G Plus
Firmware Version 4.01.21-CCR

LAN Switch:
TEG-S80TXE 10/100/1000 Switch ver. B1

SIP ATA Device:
GrandStream HandyTone 386 :
Software Version: Program-- Bootloader--

SIP Accounts Available




cableModem 67.168.x.x

Current Configuration:

Phone <–> Grandstream HT-386 <–> CableModemGateway <–> Comcast Business Switch (external) <–> Internet

Desired Configuration?

Phone <–> Grandstream HT-386 <–> Switch <–> Router<–>CableModemGateway <–> Internet
trixbox/Asterisk Server

I think you are essentially looking for a completely free service provider. They simply do not exist.

The best you will probably do is a use a service like or This service will allow to make free outgoing phone calls for 90 days and then they will charge you after that. Normally calls in the US are 1 cent/minute.

All these services can be setup on your Grandstream HT-386.