Mitel Deutschland GmbH 68635RFP36U-01 Manuale Utente
SIP-DECT OM System Manual
268
Instead of subscribing to the standard Primary Access Rights Key (PARK) of a single OMM when
registering with the system, the DECT phones subscribe using the Secondary Access Rights Identifier
(SARI) that applies to multiple OMMs in the system. All DECT phones that are subscribed to the system
using the SARI can roam between sites (and OMMs). The PARK of the central OMM is defined to be the
SARI.
registering with the system, the DECT phones subscribe using the Secondary Access Rights Identifier
(SARI) that applies to multiple OMMs in the system. All DECT phones that are subscribed to the system
using the SARI can roam between sites (and OMMs). The PARK of the central OMM is defined to be the
SARI.
Please note:
Subscription to the SARI and successful roaming is only supported for Mitel
600 DECT phones. Behavior of third party GAP phones is not guaranteed. It is
recommended that you add 3rd party GAP phones as fixed devices and configure them to
subscribe to the “PARI only”. See section 6.10.4.5 for more information.
recommended that you add 3rd party GAP phones as fixed devices and configure them to
subscribe to the “PARI only”. See section 6.10.4.5 for more information.
All DECT phone users are registered to a central SIP proxy, used by all OMM sites (as long as the
network environment is stable). OMM sites may implement local secondary SIP proxies, where local
DECT phones register in case of a failed network connection.
network environment is stable). OMM sites may implement local secondary SIP proxies, where local
DECT phones register in case of a failed network connection.
7.16.1 ROAMING
The following sections describe the roaming concepts supported with the user data synchronization
feature.
feature.
7.16.1.1 Device roaming
All DECT phones that subscribe successfully to the system SARI can roam between sites. Subscription
to the system SARI is enabled by default when a DECT phone is created. SIP registration is renewed
automatically with the OMM at the new site so that users can make and receive calls from all sites.
All DECT phones that subscribe successfully to the system SARI can roam between sites. Subscription
to the system SARI is enabled by default when a DECT phone is created. SIP registration is renewed
automatically with the OMM at the new site so that users can make and receive calls from all sites.
Unbound devices can also roam, but they are not SIP registered.