[asterisk-users] RE: Asterisk with VoIP phone (shadowym)

[J Rangi]

Thanks for the information.
I have been a paying a lot to make international calls. After reading 
through this mailing list I have a feeling that a system can be setup 
easily where the telecommunication can be affordable. Still remember 
those days when I had to wait for two weeks to talk to my family and it 
used to cost me over $15 just for 30 minutes.

Here is what I am planning. I want to take say 50 channel PRI or T1 or 
DID number for Country A and 50 Channel DID number in another country B. 
Now any user from country A (with PSTN phone) will call in Asterisk 
server using local telephone number and dial the number to make calls to 
country B. Now the asterisk server will route the call to the 
destination using country B's local number which will be local to the 
destination number.
This way no one will be paying long distance fees.
I am not sure what all is involved in this specially at macro level.
I will appreciate if some one has already done this and would like to 
share. Or even if some one can point me in the right direction.
Dont want to reinvent the wheel.

Thank you,
-






You need to carefully consider outside VoIP providers IMHO.  I would look
for providers who are very upfront about their network architecture and how
they connect to the PSTN (the public telephone network).  As a minimum, I
would ask for IP addresses to some of their SIP servers and check ping
times.  I would look for consistent ping times at different times of the day
with round trips below 50ms ideally but definitely no more than 100ms.  A
lot of this depends on geography.  It is also important to know how they
connect to the public phone network IMHO.   Ideally, they have direct "TDM"
connections (digital telephone connections) as opposed to IP connections to
who knows where.  
 
There are other considerations as well but I think that is a good start
IMHO.


  _____  

From: Bruce Reeves [mailto:asterisk at nortex-networks.com] 
Sent: Wednesday, August 02, 2006 4:58 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Asterisk with VoIP phone


Yes this is possible, you just setup the softphones and maybe the provider
in sip.conf and write your dialplan  :) 


On 8/1/06, J Rangi < jprangi at aleks.com <mailto:jprangi at aleks.com> > wrote: 

Hello,

Is is possible to setup an asterisk server with out buying Digium card. 
I mean can we do this type of setup.
We all know that X-Lite can be used as a soft phone to have an IP
extension.
Is it possible to take a service from another VoIP service provider, and
get the IP phone number. Make that phone numbe gateway to outside world. 
Now all the internal extensions use that phone to receive and make calls
to out side world.
Has any one done this kind of setup or know anything about this.

Thank you,
-Jai