MODEMS don't work with PRI over AT&T Flex

[bobertb]

[highlight #FCE94F]Once you switch over you IpO (and BCM for that matter), any applications using a MODEM will NOT work.[/highlight]
Not sure I would expect any different outcome with other provider's offerings.
I'm hoping someone replies to this and says I'm full of it and has a solution

This is a major headache that you should nip in the bud as soon as you get wind of a customer going this route.

NOTE: This is AT&T router handing off PRI to IpO...not SIP
If you monitor the connection with a Butt Set and use, say, ProComm, this is what happens:
[ul]
[li]ProComm dials out[/li]

http://www.tek-tips.com/threadminder.cfm?pid=940

[li]Far end MODEM answers[/li]
[li]You hear 1/2 second of data[/li]
[li]Procom says "Disconnected" and tries call again.[/li]
[/ul]

NOTE: This is my post in the IP Office Forum, but I just found it applies to BCM as well

This happened to our corporate office when we switched from Time Warner PRI's. We didn't find out right away (like 2 weeks) because our modem needs are sporatic.
I opened a ticket with AT&T. They played around with it for 1.5 weeks. They monkeyed around with router settings, like setting up for G711.
No luck. I've been on vacation. I think ticket is still open.
We are in the process of ordering some 1MB's.

Today I am at another customer that switched to AT&T Flex a year ago.
It is a BCM400. They don't use modems, so I cranked up ProComm for a test.
SAME problem as on the IpO

I have not had any customer complaints regarding FAXING.
I have not tested CREDIT CARD terminals yet, but I sure want to.
I haven't tried this at any CS1000 sites yet.

Also since we upgraded, there are certain IVR systems we can't break into menus with DTMF.
One is an Verizon 800 number we frequently use.
It does work with an analog set as you can push DTMF out for as long as you press the keys.

 

[curlycord]

Are you trying to ask if anyone has had issues with AT&T flex?

The systems should support fax and modem.

Why is their a Router installed on the PRI's? dont they use Pair Gains?



________________________________________
We take the time to try to answer your questions for free, please return the favor and take the time to answer back and include any resolution you found elsewhere, thanks.

=----(((((((((()----=

http://www.curlycord.com

Toronto Canada

http://www.telcopc.ca

 

[telcodog]

You can correct me if I'm wrong, but if AT&T is bringing in the circuit through a router, then you are using SIP. The fact that they break it out to PRI won't help because modems (not fax machines) rarely work with IP. You can try forcing the modem to go down to 300 baud but it probably still won't work.

We have lots of BCMs and IPOs where the dialin is via PRI to the built-in modems and they work fine......unless we try to connect via SIP trunks, then they fail every time!

 

[hawks]

curly the router is because Flex comes in IP and they convert to PRI for the CPE.

Looks like they've had this issues since 2009 from the thread below. Boy you would think there would be a solution by now.

"That will do the VOICE Side just fine, but as I have just found out on a different cut, you can forget about having any REMOTE MAINTENANCE & PROGRAMMING done though WINSPM.
The connection to the modem will simply no longer work on a dial up basis. Therefore, our client is ordering a REAL COPPER line for that purpose."

http://www.tek-tips.com/viewthread.cfm?qid=1566277

 

[bobertb]

Thanks guys...
As noted above the AT&T router has SIP inbound to it buts hands off to the BCM as PRI

I have a longer version of this topic going on the Avaya Ip Office Forum....

http://www.tek-tips.com/viewthread.cfm?qid=1750571

 

[curlycord]

Thanks for splaining dudes......a fake PRI, LOL



________________________________________
We take the time to try to answer your questions for free, please return the favor and take the time to answer back and include any resolution you found elsewhere, thanks.

=----(((((((((()----=

http://www.curlycord.com

Toronto Canada

http://www.telcopc.ca

 

[hawks]

yep at least with AT&T, I think I read somewhere that they are supposed to be completely off TDM PRI by 2017 or 18.