[asterisk-users] DID from Direct from Telco

[isrlgb at gmail.com]

The mp124 is a analog gateway and doesn't support t1's I think

A T1 is a digital line which has 24 channels per port which means 24 calls concurrently if you want more channels you need more ports 

DID's are incoming numbers the telco sends down your trunk(port) you could have thousands of DID's on 1 T1

You need a digital gateway for connecting to a T1 

Did you check if your provider will give you a T1 or maybe they could provide you a sip trunk which will save you on the hardware



-----Original Message-----
From: Nick Khamis <symack at gmail.com>
Sender: asterisk-users-bounces at lists.digium.com
Date: Thu, 3 Nov 2011 22:10:31 
To: Asterisk Users Mailing List - Non-Commercial Discussion<asterisk-users at lists.digium.com>
Reply-To: Asterisk Users Mailing List - Non-Commercial Discussion
	<asterisk-users at lists.digium.com>
Subject: Re: [asterisk-users] DID from Direct from Telco

Fair enough,

In regards to the the diagram discussed earlier:

Telco Lines ->  Gateway T1 ->  SIP Proxy ->  Media Servers -> Customer

I understand that a T1 Gateway that has 480 channels, can handle up to
240 calls.
That is more than enough for the "Gateway T1 ->  SIP Proxy" part of
the diagram. I just
want to make terribly sure I understand the "Telco Lines ->  Gateway
T1". If the Gateway T1
plugs into only 1 FXS port, is that FXS port only capable of handling
2 channels,
i.e., one call?

Thanks in Advnace,

Nick.



On Thu, Nov 3, 2011 at 9:24 PM, James Sharp <james at fivecats.org> wrote:
> On 11/03/2011 09:16 PM, Nick Khamis wrote:
>>
>> Hello James,
>>
>> Thank you so much for your response. We just purchased an AudioCodes
>> MP124 for this job. And setting
>> up OpenSIPS as the proxy. As I mentioned earlier, Bell Canada is the
>> Telco here in Toronto. As for other
>> Telcos around the world, for example Bell South in the states, is it
>> possible to have them route a block of
>> Florida phone numbers to our FXS port here in Canada, or do we have to
>> have a T1 gateway + SIP Proxy in Florida,
>> routing the calls to our setup in Toronto and vice versa?
>
> Routing Florida numbers up to Canada would get you charged LD per minute
> fees.  You can go with a provider like Level 3 or Global Crossing and they
> can hand you a T1 circuit that has DIDs from many different areas in the US.
>
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