Unsupported Mitel MN 3300 sip trunk to 3cx

[Ton Hessels]

Hello,

Is there someone who can help me to connect Mitel and 3 CX through sip trunk so you van make calss from mitel to 3cx and from 3cx to mitel.

 

[NickD_3CX]

We don't support connecting/bridging 3CX with other PBX systems.
There is a similar discussion here:
https://www.3cx.com/community/threads/connect-grandstream-pbx-to-3cx.83455/post-389005

 

[Ton Hessels]

It dosn't have to be a bridge trunk. I rather think more of a general sip trunk.

I have done it Mitel with Innovaphone, so users can call from one pbx to another. The reason for this if yoy want to change as a company from one pbx to the other pbx you don't have to do this at once. (can keep the investment low )

 

[leejor]

While this may be possible, for basic calls, you may still find a lot of issues to overcome, such as a usable caller ID.
If you want to attempt this, I would start by setting up a Master Bridge trunk in 3CX and have the other PBX register to it. Once it is successfully registered, then you will have to create routing. 3CX will expect incoming digits in pretty much the same format as sent by an internal extension.You will be able to use outbound rules, to format numbers required by the other PBX.