Aastra SIP-DECT (Release 1.8)-Installation- and Administr Manual de usuario descargar pdf (Pagina 15)

Installation, Administration and Maintenance

Aastra depl-0900/0.4 Page: 15 (104)

2.5 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.

The RFPs’ are synchronized over the air interface. The first RFP to complete

start-up will transmit a signal on the air for the other RFPs’ to synchronize

from. If a 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.

As long as an RFP is not in sync, no calls can be established using this RFP.

If a 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.

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Aastra SIP-DECT (Release 1.8)-Installation- and Administr Manual de usuario Pagina 15