For direct to phone method, there are a few requirements.
The Dialogic HMP telephony drivers require that the network interface on the DuVoice server that registers to the phone system is the same network interface that also send the SIP Notify to the phones/gateways for turning the MWI on/off.
If using an on premise PBX, the telephony network the DuVoice server is connected to will require direct access to the PBX.
If using a hosted PBX solution, the telephony network the DuVoice server is connected to will require internet access in order to access the PBX.
The telephony network the DuVoice server is connected to will require network access to the phones/gateways to send SIP Notify packets to update MWI on/off.
Below are several solutions for enabling direct-to-phone MWI via SIP NOTIFY.
This assumes the site is using one of the applicable phone models.
| Article | Link |
|---|---|
| IPPHONECFG |
This assumes there are less than 250 extensions with mailboxes listed on the DuVoice server.
| Article | Link |
|---|---|
| MWI Subscription (Limited to 250 extensions max) |
This assumes the site has all phones on the same subnet as the HMP-bound SIP network interface on the DuVoice server.
| Article | Link |
|---|---|
| DHCP ARP Method |
This assumes the site has all phones on the same network (or allows for routing SIP traffic) as the HMP-bound SIP network interface on the DuVoice server.
| Article | Link |
|---|---|
| Static IP Method |