AASTRA SIP-DECT (Release 1.8)-Installation- and Administration Guide EN - Manual (Page 6)

Installation, Administration and Maintenance
Aastra depl-0900/0.4 Page: 6 (104)
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GAP is the abbreviation for Generic Access Profile
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The GAP standard (ETS 300 444) is based on the
same technology as DECT, but is limited to the most
important basic features. This standard was created in
order to allow telephones of different vendors to be
used on any type of DECT system. It thus represents
the smallest common denominator of all manufacturer-
specific variants of the DECT standard.
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An important limitation in the GAP standard is that
external handover is not possible. For this reason
connection handover is used, which is supported by
GAP terminals.
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The operation of GAP-capable telephones is
comparable to that of analogue terminals. For
example, features can be called up via ‘*’ and ‘#’
procedures.
Handover Handover
A handover is similar to roaming, but occurs during an
ongoing call. A handover normally takes place “in the
background”, without disrupting the call (seamless
handover).
IPEI International Portable Equipment Identity
• 13-digit identification code for PPs’
• Example: 00019 0592015 3
(the final digit is the checksum).
• The code is represented in decimal form.
• This code is globally unique.
PARK Portable Access Rights Key
Access code for the Portable Part. This code determines
whether a PP can access a particular DECT system. Used
for unique selection of a dedicated the system from a
handset at enrolment/subscription time. Labelled on the
OpenMobility CD and unique to each SIP-DECT
deployment.
Roaming Roaming
While in motion, the PP performs ongoing measurements
to determine which RFP is best received. The one that can
be best received is defined as the active RFP. To prevent
the PP from rapidly switching back and forth between two
RFPs’ that have similar signal strength, certain threshold
values are in effect.