[asterisk-users] DID from Direct from Telco

[Bryant Zimmerman]

One FXS port can only handle one call. A PRI T1 gateway can handle 23 call 
channels. A single T1 Data line with SIP can handle about 18 call channels 
running G711, 37 channels running g729


Thanks


Bryant Zimmerman (ZK Tech Inc.)

616-855-1030 Ext. 2003

----------------------------------------

From: "Nick Khamis" <symack at gmail.com>

Sent: Thursday, November 03, 2011 10:09 PM

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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