Are there any known issues with the Catalyst 500 series and dropped VOIP calls? We are having repeated problems, and our provider keeps pointing back to the switch.
We are using a CE 500 24-PC and LG phones. Switch software has been upgraded, multiple different Smartport configurations have been tried, and the switch itself has been swapped out with a second 24-PC.
Are your phones randomly rebooting as well? Check to see when they last registered. If possible I would use a 3550 or 3560 power switch to see if the problem goes away.
The logging and diagnostics on the Cat 500 may point to LAN issues; unfortunately, there is no syslog built in, so power-off loses the log.
If you are using non-Cisco phones, you may have issues since not all IP phones use the same TCP/UDP ports for control and voice streaming. In other words, you may need to adjust your WAN QoS on the routers.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...