We've got a bit of a weird issue with a customer's mivoice 250 whereby the system will crash and lockup and a reboot is required to bring the system back to life. We've almost determined that the system seems to crash whenever a user is using the voicemail. The customer has had a complete replacement system (cab,processor, BRM Modules, flash card has been replaced 3 times). All onsite equipment has been checked including switches, UPS etc. The ISDN2's have been checked for any errors. We've tested the flash card in another system and cannot replicate the fault. We have a ticket logged with mitel and they seem to be just as confused. The system is on v18.104.22.168. We've wiped the programming and started fresh with only basic programming and the fault still remains the same.
A really odd one and we're scratching our heads. Any ideas would be much appreciated.
Telecoms Service Engineer