Posts Tagged Trixbox

It seems as if Cisco makes it nearly impossible to make there phones 100% compatible with SIP PBX’s like Trixbox. I recently migrated my companys 20 phones from a Hosted PBX running Call Manager to an in-house Trixbox a few months ago and everything wen through without a hitch thanks to some careful planning. Recently one of my users complained that she was not being notified whe she had a New voicemail waiting. All 20 phones are Cisco 7940’s that are running the POS3-8-12-00 Firmware. As I started to look into the issue I came across multiple forum threds citing the issue and each had their own way to solve. As you probably already know the 79xx series has a red light on the handset and an icon on the phone screen call the “Message Waiting Indicator”. One of the threads stated that the extension were incorrectly configured under the Mailbox textbox. They should have said XXX@default instead of XXX@device. This is a bug in asterisk and must be fixed manually. In my case this did not work. I had some phones that were working so I compared the configurations to those that were not working and found that the @default does not necesarrly work. It only works if default is the Voicemail Context. Good for us that under the configuration for Voicemail it has a field called Voicemail Context. All you need to do is replace what comes after the “@” in the Mailbox field with whats in the “Voicemail Context” field.

Its extreamly simple. I have only tested this on the 7940 but I am fairly confident that it should work for almost any phone in the 79xx series and may be even other SIP phones.

If your still running into issue after going through these steps feel free to leave a comment and I’ll be glad to help out.