The easiest way, although it can be a pain, is to just change the DHCP settings for the second batch of phones when needed.
The first 100 phones receive an IP address and are told to connect to the controller IP address for call control, TFTP etc.
Change the DHCP settings to your second...
I think that you should try the CPN Substitution form. You can then specify which extensions send out their DDI, and which send out the main circuit number.
Create a seperate class of service for the 5th line, reducing the call forwarding timer. This may work, but it's dependant on how you have things set up at the minute, for example is it a hunt group, ring group etc.
It'll be a case of trial and error.
I've tried upgrading the IPBS successfully, from 4.0.8 to 4.0.25. The WSM doesn't need upgrading. The handsets need their firmware upgrading. This was a recommendation from Mitel to fix a fault that was happening on a customer site. However, the handsets stay out of service after the...
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