BRI Stations 2

[ipfreelyallthetime]

I currently have 2 BRI curcuits of the 2000 connected to a picturetel conferencing unit. When we dial out we are able to get a 256k connection. When callers call in they are only able to connect at 192k.
1) I have verified all programming
2) DID are pointed to the approriate ISDN ext.
3) Have tried swapping cards in PBX
4) changed position on the mux incase we had a bad port
5) verified all mux settings

Any help will be much appreciated!

Thanks,
IPfreely all the time (VOIP)

 

[OzzieGeorge]

I think this is a case of having to set up a group call see the ISDN programming manual chapter 3 page 111

I tried to paste it in here but It wont work.

 

[pave35]

Your problem sounds like you do not have the dialed number set correctly in the picturetel.
If you are looking at 256K you must have 2 or 4 DID numbers assigned depending on how you went about it.
In the video codec I usually have my first DID number (the one called by the distant site) assigned against my first 2 channels which = the first 128K in the video codec. In the PBX assign CM 76 to point the first DID to the CM 10/14 ISDN station number. The first call to this number will pickup the first 64K channel ext (assigned in CM 1B>ISDN#,0) and the 2nd call to the same number will hit the other channel (assigned in CM 1B>ISDN#,1). On the 2nd port of the video codes I assign the 2nd DID to both channels and this one works in the same method as described above.
When the call comes in from the remote side the unit connects and the 2 video codecs decide on the call type and band width. If 256K is negotiated the distant side will request 3 more DID numbers to call to obtain this additional band width. These are the DID numbers you assign in the codec and if just one number is wrong you get the results you are describing.
Some people assign 4 DID's for this type of application but I think that is just a waste of 2 DID's.

 

[OzzieGeorge]

This is an answer worth adding to the organiser. I had never set one up so was searching for an answer. I'll know it in future.

 

[ipfreelyallthetime]

Thanks,
Guys. The Mux had the wrong number programmed 1 to many digits. All is working fine!

Chris A