Robert Goodyear
2005-May-13 11:05 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
Does anyone know of a way to simulate the signaling of a PRI trunk for testing/setup purposes? I realize this may be a rather naive question, but I was wondering if you could take a TE110, for example, and using a crossover cable (or not?) and some means of emulating the NI2 signaling protocol connect it to another TE110 on another machine to test and verify an installation before the telco comes out to provision our new trunks. Regards, /rg
Dey, Spondon, ALABS
2005-May-13 11:16 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
Rob, That should work.....without a crossover though.... If you have an extra card and machine to dedicate for that purpose that should suffice. In theory it should work....i have been tempted to try it but haven't.... let me know the outcome if you do try it. Thanks!! Spondon -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Robert Goodyear Sent: Friday, May 13, 2005 2:06 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [Asterisk-Users] Is there a product to simulate a PRI trunk? Does anyone know of a way to simulate the signaling of a PRI trunk for testing/setup purposes? I realize this may be a rather naive question, but I was wondering if you could take a TE110, for example, and using a crossover cable (or not?) and some means of emulating the NI2 signaling protocol connect it to another TE110 on another machine to test and verify an installation before the telco comes out to provision our new trunks. Regards, /rg _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Charlie Watts
2005-May-13 11:28 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
That is incorrect, you need a crossover cable to go directly between two T1 jacks if the Telco isn't in the middle. A T1/E1 crossover cable swaps pins 1&2 with 4&5. For PRI, configure one end as pri_net, and the other end as pri_cpe. Works just fine. Lots and lots of folks do this. Channel banks, legacy phone systems, multiple asterisk systems, modem servers. Dey, Spondon, ALABS wrote:> Rob, > That should work.....without a crossover though.... > If you have an extra card and machine to dedicate for that purpose > that should suffice. > In theory it should work....i have been tempted to try it but > haven't.... > let me know the outcome if you do try it. > Thanks!! > Spondon > > > > > -----Original Message----- > From: asterisk-users-bounces@lists.digium.com > [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Robert > Goodyear > Sent: Friday, May 13, 2005 2:06 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [Asterisk-Users] Is there a product to simulate a PRI trunk? > > > Does anyone know of a way to simulate the signaling of a PRI trunk > for testing/setup purposes? I realize this may be a rather naive > question, but I was wondering if you could take a TE110, for example, > and using a crossover cable (or not?) and some means of emulating the > NI2 signaling protocol connect it to another TE110 on another machine > to test and verify an installation before the telco comes out to > provision our new trunks.
Dey, Spondon, ALABS
2005-May-13 13:08 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
Charlie, I appreciate the clarification on the cross over..... I haven't tried this yet but I do understand that in theory it should work..... Glad to hear confirmation that this does work though..... Thanks!! Spondon -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Charlie Watts Sent: Friday, May 13, 2005 2:29 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Is there a product to simulate a PRI trunk? That is incorrect, you need a crossover cable to go directly between two T1 jacks if the Telco isn't in the middle. A T1/E1 crossover cable swaps pins 1&2 with 4&5. For PRI, configure one end as pri_net, and the other end as pri_cpe. Works just fine. Lots and lots of folks do this. Channel banks, legacy phone systems, multiple asterisk systems, modem servers. Dey, Spondon, ALABS wrote:> Rob, > That should work.....without a crossover though.... > If you have an extra card and machine to dedicate for that purpose > that should suffice. > In theory it should work....i have been tempted to try it but > haven't.... > let me know the outcome if you do try it. > Thanks!! > Spondon > > > > > -----Original Message----- > From: asterisk-users-bounces@lists.digium.com > [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Robert > Goodyear > Sent: Friday, May 13, 2005 2:06 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [Asterisk-Users] Is there a product to simulate a PRI trunk? > > > Does anyone know of a way to simulate the signaling of a PRI trunk > for testing/setup purposes? I realize this may be a rather naive > question, but I was wondering if you could take a TE110, for example, > and using a crossover cable (or not?) and some means of emulating the > NI2 signaling protocol connect it to another TE110 on another machine > to test and verify an installation before the telco comes out to > provision our new trunks._______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Charlie Watts
2005-May-13 13:25 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
Robert Goodyear wrote:> On May 13, 2005, at 12:39 PM, Chris A. Icide wrote: > >> You should note that while this "works" technically, it won't catch >> any issues that you may experience when connecting to other PRI >> switches. >> >> In other words, two asterisk servers connected back to back with a T1 >> cross-over cable won't tell you that Asterisk's NFAS code doesn't >> work with Lucent 5ESS switches, or that Sangoma's code pre-firmware >> v1.1 and pre-driver beta6 versions won't bring up the D channels when >> connected with certain switches. Everything will work between two >> asterisk boxes perfectly. >> > > Right. Which is why I wanted to figure out if there was a way to > emulate the particular signaling protocol; in my instance, NI2, to > ensure I'm doing all the right things on my end based on what I tell > the simulated telco end to impersonate.You aren't "emulating" a particular signalling protocol, you're actually using it. If you plug two *'s back to back, and are configured for NI2, you can do a "pri debug span foo" and watch it talking PRI. But what he said: There are interoperability issues. That's not the same thing. And NI2 is probably the most common protocol out there - a single T1 to a carrier, using NI2, is about as likely to work as anything.
Dey, Spondon, ALABS
2005-May-13 13:38 UTC
[Asterisk-Users] Is there a product to simulate a PRI trunk?
Robert, For more protocol focussed testing you can chack out the T-berd product line: http://www.acterna.com/global/products/descriptions/TB-224/index.html You may know this already but I will pass it on in the spirit of sharing information.... They have other models ....the product link above is probably decent for what you are looking for..... Thanks!! Spondon -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Robert Goodyear Sent: Friday, May 13, 2005 4:01 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Is there a product to simulate a PRI trunk? On May 13, 2005, at 12:39 PM, Chris A. Icide wrote:> You should note that while this "works" technically, it won't catch > any issues that you may experience when connecting to other PRI > switches. > > In other words, two asterisk servers connected back to back with a T1 > cross-over cable won't tell you that Asterisk's NFAS code doesn't work> with Lucent 5ESS switches, or that Sangoma's code pre-firmware v1.1 > and pre-driver beta6 versions won't bring up the D channels when > connected with certain switches. Everything will work between two > asterisk boxes perfectly. >Right. Which is why I wanted to figure out if there was a way to emulate the particular signaling protocol; in my instance, NI2, to ensure I'm doing all the right things on my end based on what I tell the simulated telco end to impersonate. _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users