Unity Connection 8.6 not setting mwi on against user when voicemail left

[cnoonan]

When a voicemail is left for a user the MWI is not sent to the phone.

MWI when dialled by phone does set lamp on and lamp off.

When MWI is checked against user entry in Unity Connection system the status is shown as off even though the unread message is available for them to pick up.

MWI is enabled in Unity Connection.

Does anyone have any ideas?

Thanks in advance as this is doing my head in

Chris

[cnoonan]

I think I found the cause.

At least it is now working.

On the SIP trunk security profile the three check boxes below were unchecked where the integration document says they should be checked.

Accept Out-of-Dialog Refer

Accept Unsolicited Notification

Accept Replaces Header

Set them to checked, reset the trunk and all was good.

The perils when someone else builds the servers and integration.