Filter
Top Products
13-4940-00251 Commend SIP Doorphone
4
Device Limitations
This is a list of problems or not supported features when the Commend SIP Doorphone is
connected to the Mitel 3300 ICP.
Feature Problem Description
De-registration
Not supported. The Commend SIP Doorphone has no means on the
client to de-register.
Recommendation: Contact your local Commend reseller for further
details
All Call Features
The Commend SIP Doorphone has only a single call button to initiate
outbound calls to a pre-provisioned DN, and therefore cannot support
call features.
Recommendation: Contact your local Commend reseller for further
details
DTMF
For In-Band DTMF on SIP to SIP calls, you could hear the played
tones on the Commend SIP Doorphone, but the tones would not
activate the door relay.
Recommendation:
use RFC2833
Codec Support
The Commend 8028 does not support G729
Recommendation: Use G711 or G722 codec.
Resiliency
Not supported – The Commend Doorphone does not switch to
secondary MCD when the primary MCD is not available.
Recommendation: Contact your local Commend reseller for further
details
Miscellaneous
The Commend SIP Doorphone dos not support non-preferred
Provisionial Response (PRACK or no PRACK) and did not maintain
long calls through Session Timer resets (neither UPDATE nor re-
INVITE).
Recommendation: Contact your local Commend reseller for further
details