Mitel Deutschland GmbH 68635RFP36U-01 Manuale Utente
SIP-DECT OM System Manual
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phone user is registered and whether the server is a primary, secondary or tertiary server. To monitor
the SIP registration status proceed as follows:
1 Launch the OMP (see section 6.1) and navigate to the DECT Phones -> Overview menu.
2 Switch to Monitor Mode.
3 Activate the Registered, Registrar server type, Registrar server and Registrar port columns (see
the SIP registration status proceed as follows:
1 Launch the OMP (see section 6.1) and navigate to the DECT Phones -> Overview menu.
2 Switch to Monitor Mode.
3 Activate the Registered, Registrar server type, Registrar server and Registrar port columns (see
section 6.10.9).
7.20.7 CONFIGURABLE USER ACCOUNT FOR STANDBY CHECK
The “Standby OMM” feature of SIP-DECT allows configuration of the user account to be used to check
iPBX availability. Such an availability check starts automatically in fail over situations.
iPBX availability. Such an availability check starts automatically in fail over situations.
Therefore, the OMM starts a SIP registration for a specific DECT phone user and sends an OPTIONS
request to the configured SIP proxy. If there is an answer, the SIP proxy/registrar is considered
reachable and the standby OMM becomes active.
request to the configured SIP proxy. If there is an answer, the SIP proxy/registrar is considered
reachable and the standby OMM becomes active.
With older SIP-DECT releases, the OMM used the user account with the lowest phone number for the
check procedure.
check procedure.
To select a specific user account for this purpose, enable the
Used for visibility checks flag on the SIP
tab when creating or editing a DECT phone.
Please note:
The “Used for visibility checks” flag can only be set for one user. The number
for visibility checks is shown in the OMP under
Status -> Users -> Number.
If the flag is not set for a specific user, the OMM uses the user account with the lowest
phone number.
phone number.
7.20.8 OMM STANDBY ENHANCEMENT
With SIP-DECT systems using the OMM standby feature it could happen in rare cases that both OMMs
become temporarily active. In such a situation all SIP-DECT users were SIP registered from both OMMs
to the configured PBX. This can cause problems, when the PBX accepts only one registration per user
(non-forking proxy).
To prevent such problems a mechanism is realized to detect situations with two active OMMs. When
such a situation is detected the remaining active OMM will SIP re-register all users to the PBX.
become temporarily active. In such a situation all SIP-DECT users were SIP registered from both OMMs
to the configured PBX. This can cause problems, when the PBX accepts only one registration per user
(non-forking proxy).
To prevent such problems a mechanism is realized to detect situations with two active OMMs. When
such a situation is detected the remaining active OMM will SIP re-register all users to the PBX.
This mechanism can be enabled/disabled via the OMP
SIP->Supplementary Services tab (see section