Failed calls on Polycom Video Conferencing using ISDN-BRI

[jordy5535]

I have a Polycom ViewStation 512 that I am running 3 ISDN-BRi's on and it works fine to most external locations, however when I try to make a call to a Polycom VSX7000 that we have installed as a built-in to multiple rooms, that also uses Telco ISDN-BRI, the call stops ringing on the ViewStation, but continues to ring on the built-in codec unit the VSX7000.

 

[phoneguy55]

Not an easy read... But you may want to make sure that your polycoms are set up for auto answer. Have your tried the call both ways, A to B and B to A. Does that work? Also under advanced dialing you can set up to dial 2 channels at once or one at a time. What ever you are currently doing, try the other.

Did you know that you can purchase a BRI board for your definity and use your PRI to make video calls. You can get rid of your dedicated BRI's and save some $$$$.

 

[jordy5535]

Thanks. Both Polycoms are set to auto-answer but I cannot call either way. My guess is there is some mismatch in the settings of the VSX7000. I have tried to change all of the options in the ViewStation. I have tried dialing one channel at-a-time, it makes no difference.

We knew about adding a BRI board in the S8710 but do not have enough spare slots.

 

[phoneguy55]

Has the new VSX ever made a sucessful video call? Polycom has some test numbers that you can call. Have you tried to complete a call to them?

 

[jordy5535]

The VSX 7000 works fine, in fact it has never failed. For some reason though I can't call from the VSX7000 to this ViewStation 512 and vice-versa. The ViewStation 512 works fine to all other numbers.

 

[phoneguy55]

OK. Are these 2 locations in the same area code?

Who is you LD provider in both locations? I know for a fact that AT&T maintains a global video conference data base. If your SPIDS are not loaded into this data base, sometimes you will have routing problems. This happened to me once, I wasn't able to call from A to B or B to A, but other sights worked fine. I placed an order with AT&T to get my SPIDS loaded into their data base and that solved the problem.

 

[jordy5535]

Yes, they are the same area code, so calls would not route through AT&T, they would route through my local Telco, SBC.

I'll check with SBC and AT&T. Thanks.

 

[irisngen]

yep, same happened to me. it took a few hours working with an AT&T tester to prove when the issue was.