Changed the system IP and now some telephones cannot page. We can hear it access the paging system but no audio comes out. Thought it could be a switch issue with multi-cast however some phones work on either switch so that can't be the problem
If the system is in "IP on the Fly" mode you will need to add IP's to the IP pool on the system. If you aren't using any remote phones you can put the system in "Ethernet only" mode and you won't need to worry about the additional IP's. Also, ihave seen problems where you need to make sure that IGMP snooping is enable on the switches for paging to work.
SOURCE: Random crashes of 3Com NBX V3000...
Call 8008763266. Also check 3Com Primus Knowledgebase for savecore procedure.then check nboss.log.
3Com NBX Support Team
SOURCE: Robotic voice
I had a similar problem at a customer and I returned the NBX for a new one. Research had suggested there was a problem with the ethernet controller.
SOURCE: We have a 3Com NBX V3000. The building our office
This was a rather simple fix. When I was speaking about the NBX V3000, I was talking about our 2U NBX Chassis which holds the line card. When our phone system was installed I wasn't shown the 1U NBX V3000 "Brain". I thought everything was contained in the chassis. Long story, short, I restarted the 1U "Brain" and the system came back up with 5 minutes.
SOURCE: My home ATT Uverse phone
This is an AT&T problem. Good luck getting them to change the DTMF settings on your U-Verse box!
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