Mitel 5220 SIP Phone: rtos_mutex.cpp

[alapi]

Hi,

I've some Mitel 5520 runnig SIP protocol with Asterisk PBX, and all phones work fine except one.

All morning when I arrive to my office, I see one phone blocked, it's display:
[tt]
Assert @ 121 #7n-06
rtos_mutex.cpp
[/tt]

I reset the phone and it work's all day, but the next morning it appears blocked again.

The phone work perfecly with Mitel ICP, running Minet.

We've more 5220 working fine with SIP, and they are same revsion:
[tt]
HW Rev: D.3
Boot: 02.00.00.09
Firmware: 05.00.00.16
[/tt]

Can anybody help me ?

Thanks.

JI

 

[TheMitelGuy]

Perhaps the firmware chip is corrupt. I would download the last firmware for SIP (you can get it from Mitel.com, via a public forum, no dealer status required) and upload it to that phone.