BCM50 users cannot hear callers 2

[pcspaul]

I am having an issue with users interrmitently no being able to hear callers in the middle of a call. The system is close to maxed out lines and am thinking this may be related.

 

[DigitelD]

More info is needed:
BCM50, 400, or 450?
What release?
What type of lines and how many?
Is the system currently updated with the latest update?
How many phones, digital or IP?
What is the physical architecture of the BCM? i.e. how many modules, are you using an exp cabinet?

SHK Certified (School of Hard Knocks)
NCSS, ATSP/IP

 

[Firebird Scrambler]

As you have a BCM 50, what version is it and what are the latest patches that you have installed?. They might need updating?.

All the best

Firebird Scrambler
Meridian 1 / Succession and BCM / Norstar Programmer in the UK

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

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

 

[pcspaul]

We have about 60 IP phones and several lines (not sure exactly what kind).

Here is some more info on the BCM50:

Nortel Business Element Manager
Version 60.3.0 View README View License Agreement
Copyright (c) 2005-2012 Nortel All rights reserved.
Installed Cartridges: 0.1.0 (JDM version:603b02_01 supports BES1xx/2xx and BES1xxx/2xxx devices) BCM 4.0 Element Manager Cartridge 0.0.29 (BCM200.4.39-0) BCM 4.0 Element Manager Cartridge 0.0.29 (BCM200.3.75-0) BCM 50 R2 Element Manager Cartridge 3.0.0 (BCM50.2.44-0) Technical Support:

http://www.nortel.com/support

Java Version: 1.6.0_02 Java Vendor: Sun Microsystems Inc. Java Home: D:\Program Files\Nortel\Business Element Manager\jre Java Class Version: 50.0 Java Class Path: D:\Program Files\Nortel\Business Element Manager\BusinessElementManager\lib\patch.zp;D:\Program Files\Nortel\Business Element Manager\BusinessElementManager\bin\run.jar;D:\Program Files\Nortel\Business Element Manager\BusinessElementManager\bin;D:\Program Files\Nortel\Business Element Manager\BusinessElementManager\server\default\conf;D:\Program Files\Nortel\Business Element Manager\BusinessElementManager\bin\lax.jar; Operating System: Windows 2003 System Architecture: x86 Operating System Version: 5.2 Build ID: bcmsusemfw60aa07

 

[curlycord]

BCM50 Release 6.0

Internal calls too or just external?
Inbound or outbound or both?.

Your not sure if your lines are POTs or PRI?

All switches allow voice priority?



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

http://www.curlycord.com

 

[telcodog]

60 IP phones on a BCM50? Are any of them digital sets? Are you sure its a 50? That thing maxes out at 32 IP sets.

 

[ucxguy]

The only installed BCM50 cartridge (BCM 50 R2 Element Manager Cartridge 3.0.0) would indicate that this is a BCM50 R2 system. BCM50 supports maximum of 32 IP phones in the normal mode or up to 80 IP phones in the SRG mode. I am pretty much sure you're not using SRG, so you are limited to 32 IP phones. Based on the information that there are about 60 phones on the system, you either have all digital or a combination of digital and IP phones.

In any case, using BCM50 for 60 users - for example 32 IP phones + 28 digital phones (base + DSM16 MBM) + 23/30 digital trunks (DTM MBM) - is certainly pushing the BCM50 system to its limits. If you get close to 30 calls from IP phones to PSTN combined with several users accesssing voicemail, the BCM50 is likely running at 100% CPU.

You could use BCM Monitor to monitor the system's activity - either to watch it while these problems occur or you can enable logging to collect data that you can analyze later. In BCM Monitor, you can see the memory and CPU usage, number of active calls, utilization of lines, etc.

The problem description - users cannot hear callers - does not include information for how long they have no voice path. If it's just a brief period of time, maybe it could be caused by the voicemail component. Check if there are some mailboxes with a (very) large number of messages - if you find any, clean them up. From what I remember from R1/R2 days, mailboxes with many messages could cause voice path interruptions ranging from a few hundred milliseconds to several seconds (depending on the number of messages) for calls between IP and digital (IP phones over digital trunks or digital phones over IP trunks). There was no impact on digital to digital calls (digital phones over digital trunks).

If at some point you get to contemplate a more radical solution - whether to get further expansion capacity or for performace reasons - an upgrade to the E-MetroTel's UCx system might be worth consideration. With the UCx system, you would keep all the phones (both digital and IP), from the user perspective phones would behave pretty much the same way, but all call processing and advanced features would be handled by the UCx server. Plus you could add more Nortel phones, SIP trunks, SIP phones...

 

[curlycord]

Good eye.

Sounds like a tech should be involved, especially if you don't know your own system.




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

http://www.curlycord.com

 

[pcspaul]

I'd love to pass it off to a tech but we canceled our service contract to buy a new system which has not been purchased yet. I have removed much of the voicemail off the system and am logging the cpu usage. So far so good. Thanks for your help!