|
|
Joined: Nov 2007
Posts: 492
Member
|
OP
Member
Joined: Nov 2007
Posts: 492 |
Is there a maximum number of DID numbers that can be ported over a T1?
|
|
|
Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.
|
|
|
|
Joined: Dec 2005
Posts: 7,056
RIP Moderator-Mitel, Panasonic
|
|
RIP Moderator-Mitel, Panasonic
Joined: Dec 2005
Posts: 7,056 |
Never had the problem. If you have tooooo many, you'll start getting busys for callers because all 24 channels are tied up. Then you just add another T1!  (Show Me The Money)
When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.
|
|
|
|
|
Joined: May 2002
Posts: 17,722 Likes: 18
Member
|
|
Member
Joined: May 2002
Posts: 17,722 Likes: 18 |
Right it has more to do with traffic than the number.
Retired phone dude
|
|
|
|
|
Joined: Jan 2005
Posts: 15,379 Likes: 13
Moderator-Vertical, Vodavi, 1A2, Outside Wire
|
|
Moderator-Vertical, Vodavi, 1A2, Outside Wire
Joined: Jan 2005
Posts: 15,379 Likes: 13 |
While there is technically no limit, the manner in which exchange codes are being sold today (blocks of 1,000 numbers rather than 10,000) changes things dramatically. Most service providers these days aren't buying a full 10K like the old days, so you may be hard-pressed to find one that has a large number of DID blocks just sitting there.
We have several real estate companies here that give each agent a personal DID, plus they maintain a reasonable number of spares due to high turnover. The last time I checked, one of them has 640 DIDs riding on one PRI. The another one has about 300. It can be done, but with real estate, the per-number traffic is fairly low.
Ed Vaughn, MBSWWYPBX
|
|
|
|
|
Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
|
|
Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
Each T-1 has 24 channels available. The real question is, how many DID numbers can be supported on a Trunk (channel)?
Like all trafficking questions, the answer is affected by two main points- how busy is the site (how many calls and of what duration) and how many trunks are allocated.
The more trunks you allocate, the more numbers you can support.
100 numbers can easily be supported on 10-15 trunks, but 5000 numbers can easily be supported on 150-200 trunks! though to be honest, part of this formula is because as an organization gets larger (5000 people in one location) more and more of it's calls become internal.
Your carrier should be able to give you trafficking information, including Busy-Hour statistics that will help you decide on how many channels you need.
Sam
"Where are we going and why are we in this hand basket?"
|
|
|
|
Forums84
Topics94,294
Posts638,831
Members49,768
| |
Most Online5,661
May 23rd, 2018
|
|
|
|
