MWI and Aastra 9133i

[paragondie]

We are running the enterprise version of 3cx with Aastra 91331 phones and the MWI lamp lights on the phones but after you delete the message the lamp stays lit. I can only get it to go off by restarting the phone. Any ideas?

 

[SY]

Here is a brief description of MWI support implemented in PBX.
Could you please ask support team of "Aastra 9133i" device for more information?

PBX support "indialog" and "outofdialog" notifications.
"indialog" means correct support of SUBSCRIBE for message-summary notifications by device.
"outofdialog" means ability of device to receive notification without subscription.
Finally, device (soft phone version) must support it

few pieces of information:
1. X-lite/eyeBeam works with "indialog" style if you tick "Check for Voice Mail" on Voicemail tab. You can specify voice mail server there and access to voice mail by clicking on mail icon.
2. Grandstream GXP2000 provides option like "subscribe for MWI", but it is not working correct, so turn it off because this phone support "outofdialog" and will work in this case.
3. Sipura(lynksys) (I forgot about exact model) has interesting logic, but it also works good with MWI,just play with option (if I remembered it uses "outofdialog" style so set "MWI subscription" option to off). Costas knows more about it.
4. Snom also uses "outofdialog" style, it should start right after you configure phone to working with MWI.

...

 

[paragondie]

You are correct. There is a switch in the Aastra 9133i phone configuration GUI titled 'explicit MWI subscription'. One would think that should be on but when I disable this line the lamp works correctly.

Thanks

 

[nb]

GXP2000 has the same problem as Aastra

Just for general knowledge, the Grandstream GXP 2000 works in this same way. The wording is a bit different only. In a GXP2000, the option is Subscribe to MWI. If this is enabled, MWI will not work and will give similar problems. This has to be disabled and MWI will work as expected.

 

[paragondie]

Thanks again. Hope this helps others. It took a bit of testing to find this out.