Grandstream GAC2500 Conferencing

[StardataMitel]

Hi Team,

I'm wondering if anybody has had experience with the GAC2500 registered to MiVB.
The customer has bought one with out consulting us first and I cant find any interop guides.
We can get the device registered and making calls however we can't conference in 2nd, 3rd and 4th party's.

Any help or guidance would be greatly appreciated.

 

[Billz66]

did you add multicalls of the primary number to the extension in the pabx ?

If I never did anything I'd never done before , I'd never do anything.....

 

[StardataMitel]

Yes have already added multicall.