Unfortunately, I've been unable to replicate this issue inhouse in our testing lab, but we've had 30-40 people call in with this issue over the last year. I finally found where the problem was occuring and can resolve it only by doing voicemails as emails.
However, sometimes, theres just no dialtone or loud buzzing sound on the phone. If you clear the voicemail from here, the problem is instantly gone (removing the MWI manually).
If you call into the line on the ATA, you will get through as you'd expect.
Or, you can reboot the ATA to resolve the issue as well. We've had this issue through the entire 1.3.x line, not excluding the newest 1.3.3 which has the problem to. I just dont know how to even go about troubleshooting this as it appears to be hardware related. Has me wondering if its similar to the CWCID where it only works on some devices.. meaning this problem is only affected on some handsets...
You guys heard of this problem before? I'd be happy to post a config that we use on our provisioning server to send down to the ATAs.
Config may be usefull, but catched debug and syslog is more usefull. You need not to replicate issue in your testing lab to catch the logs. We are catching all the logs from all the devices in our network all the times.
You have a Cisco Unified Communications Manager (CUCM) system and want
to configure a SPA112 analog telephone adaptor (ATA) to register to the
CUCM so that you can use up to two analog phones or similar FXS devices
with the CUCM.In this application note, ...
This document is a must-read for all SPA232D installers, administrators,
and users. The document takes you from unboxing the SPA232D ATA and
SPA302D DECT handsets, through DECT handset registration, and connecting
to the PSTN and ITSP.The document describ...