Mitel Deutschland GmbH 68635RFP36U-01 Benutzerhandbuch
SIP-DECT OM System Manual
220
7.2 RFP SYNCHRONIZATION
To guarantee a seamless handover if a caller moves from one RFP zone of coverage to another RFP
zone of coverage, an accurate synchronization of the RFPs is necessary.
zone of coverage, an accurate synchronization of the RFPs is necessary.
The RFPs are synchronized over the air interface. The first RFP to complete startup will transmit a signal
on the air for the other RFPs to synchronize from. If an RFP gets in sync, then it will transmit a signal on
the air and will be the sync source for the next RFP. Only RFPs which can receive a synchronization
signal will become synchronized.
on the air for the other RFPs to synchronize from. If an RFP gets in sync, then it will transmit a signal on
the air and will be the sync source for the next RFP. Only RFPs which can receive a synchronization
signal will become synchronized.
For the RFP to sync to another RFP the signal strength cannot drop below -70 dBm. You must consider
this requirement during the site survey.
this requirement during the site survey.
As long as an RFP is not in sync, no calls can be established using this RFP.
If an RFP loses the synchronization, the RFP does not accept new calls (“busy bit”). There is a delay of
maximum 3 minutes until the active calls on this RFP are finished. Then it tries to get synchronized
again.
maximum 3 minutes until the active calls on this RFP are finished. Then it tries to get synchronized
again.
A SIP-DECT installation is more reliable if an RFP can receive the signal from more than only one RFP
because the other signals are also used for synchronization.
because the other signals are also used for synchronization.