BCM450 Dial-up trouble

[oldestgeek]

I have a 450 that I'm trying to set up dial-up access to. I can dial into it from on site as long as I dial the target line assigned to it from one of the analog ports on the system - i.e. out through the PRI and back in. However, when I call the same connection from my office or home, I get "Error 678 - The remote computer did not respond" after about 10 seconds. I did hear the modem answer but I did not get the "training" that I normally hear on a successful connection. I can connect to other BCM50s from my office.

 

[Firebird Scrambler]

I've not seen a BCM 450, but does it still use an internal modem with a cable connection on the front?. If so, have you tried connecting a direct exchange line on a temp basis to see if that works OK?.

All the best

Firebird Scrambler
Meridian Programmer in the UK

http://www.linkedin.com/in/davidbromley

Useful Nortel forum at

http://www.tspforum.com

If it's working, then leave it alone!.

 

[bluemr2]

Not any longer. It is a software modem like the bcm50.

 

[oldestgeek]

Yep, It's internal as Bluemt2 stated. It works when I'm onsite but not when I leave. I even replaced the phone number with one for another site and that one connects every time, so I know it's not my laptop or the line I'm calling from.

 

[oldestgeek]

I also found that even onsite, when calling from an analog CO line, the connection fails with error 678, but if I dial from an analog extension out through the PRI and back to the DID assigned to the modem, the connection works. Very weird.

 

[Firebird Scrambler]

As you are trying to connect via the BCM's internal modem, then can you use the BCM monitor program from another computer that is connected to the BCM via a LAN connection to see if the DID line is shown as ringing in?.

They may still be a configuration issue. It's worth a try?.

All the best

Firebird Scrambler
Meridian Programmer in the UK

http://www.linkedin.com/in/davidbromley

Useful Nortel forum at

http://www.tspforum.com

If it's working, then leave it alone!.

 

[oldestgeek]

The monitor shows the line connecting and the alarm log shows modem connected, then modem disconnected. Thanks.

 

[Khosher]

If had these sort of problems in the past. I think it is more an issue with the PC modem than the BCM. For instance, my laptop modem can connect to BCM200/400 modems but not BCM50. My destop couldn't connect to either. I then upgraded my destop modem to a US robotic and it can now connect to all, but my laptop internal modem still wont connect to any BCM50 modems. I never found any way around this and I did spend quite a bit of time on it.

 

[oldestgeek]

OK, I finally got this fixed. It was a carrier issue in the PRI IAD. They had removed the G.711 protocol. I also had to disable modem compression on my PC.