How can i integrate, connect our Mitel 3300 ICP system with our Asterisk system so people from * extensions can call Mitel extensions. (the phones, extensions that are connected to Mitel 3300 ICP ARE NOT SIP, but mitel smth)
Sounds like a question for Mitel support. If you’re not using SIP then you’d probably need an E1/T1 connection between each server. Easy enough to do with Asterisk.
check this link for a working SIP Trunk configuration between * and Mitel 3300 ICP -