SIST ETS 300 175-9:1998

SLOVENSKI STANDARD
01-september-1998
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Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 9:
Public Access Profile (PAP)
Ta slovenski standard je istoveten z: ETS 300 175-9 Edition 2
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 175-9
TELECOMMUNICATION September 1996
STANDARD Second Edition
Source: ETSI TC-RES Reference: RE/RES-03027-9
ICS: 33.060, 33.060.50
Key words: DECT, PAP, radio
Radio Equipment and Systems (RES);
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 9 : Public Access Profile (PAP)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1996. All rights reserved.

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ETS 300 175-9: September 1996
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 175-9: September 1996
Contents
Foreword .9
1 Scope.11
2 Normative references.11
3 Definitions and abbreviations .12
3.1 Definitions.12
3.2 Abbreviations .14
4 Features for the public access service.15
4.1 Description of the features .15
4.1.1 Speech.15
4.1.2 Bell on .15
4.1.3 Bell off.15
4.1.4 Off-hook .15
4.1.5 On-hook (full release) .15
4.1.6 Partial release.15
4.1.7 Dialled digits (basic).15
4.1.8 Dialled digits (additional) .16
4.1.9 Dialling delimiter .16
4.1.10 Dialling delimiter request .16
4.1.11 Register recall.16
4.1.12 Go to DTMF.16
4.1.13 Go to pulse .16
4.1.14 Pause (interdigit pause) .16
4.1.15 Specific trunk carrier selection.16
4.1.16 Incoming call .16
4.1.17 Hold call.16
4.1.18 Re-connection of a held call.16
4.1.19 Forced re-connection.16
4.1.20 Authentication of PP.17
4.1.21 Authentication of user.17
4.1.22 Authentication of FP.17
4.1.23 Silent polling.17
4.1.24 Class of service field indication .17
4.1.25 Inter-operator roaming registration.17
4.1.26 Control of supervisory tones.17
4.1.27 Regular security handshake.18
4.1.28 Signalling of display characters.18
4.1.29 Display control characters .18
4.1.30 ZAP suspend.18
4.1.31 ZAP terminate.18
4.1.32 Alphanumeric text messaging and radiopaging service.18
4.1.33 Voice and user data traffic encryption activation/deactivation .18
4.1.34 Signalling traffic encryption activation/deactivation .18
4.1.35 Debit public access service .18
4.1.36 Credit public access service .18
4.1.37 Credit agency public access service.19
4.1.38 On-demand (hot-bill) public access service .19
4.1.39 Advice of tariff request.19
4.1.40 Advice of charge request.19
4.1.41 Location registration for incoming calls, paging or messages.19
4.1.42 Location de-registration for incoming calls, paging or messages.19

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ETS 300 175-9: September 1996
4.1.43 Queue management.19
4.1.44 Queue entry request .19
4.1.45 Queue exit request.19
4.1.46 "Portable part inaccessible" indication.19
4.1.47 "In-range" indication .19
4.1.48 Emergency service access request .20
4.1.49 Indication of teleservices available request.20
4.1.50 Indication of teleservices available.20
4.1.51 Selection of service provider/network operator.20
4.1.52 Selection of required teleservice .20
4.1.53 Selection of bearer service.20
4.1.54 Validation of PP user.20
4.1.55 Validation of PP.20
4.1.56 Validation of identity module .20
4.1.57 User Personal Identification (UPI).20
4.1.58 Group address .20
4.1.59 Selection of additional character sets .21
4.1.60 Data capability.21
4.1.61 Keypad protocol for supplementary services.21
4.1.62 Feature key management protocol for supplementary services.21
4.1.63 Functional protocol for supplementary services .21
4.1.64 Dial tone detection indication.21
4.1.65 Request for indication of (temporary) subscriber number .21
4.1.66 PP capability/FP capability data exchange .21
4.1.67 Subscription registration user procedure (on-air) .21
4.1.68 Subscription registration user procedure (keypad).21
4.1.69 Subscription registration user procedure (DECT authentication module) .21
4.1.70 Subscription data exchange (on-air) .21
4.1.71 Multicell FP coverage.22
4.1.72 Handover .22
4.1.73 Multiple subscription registration .22
4.1.74 All-physical-channel capability.22
4.2 Summary of DECT public access service facilities.23
5 Effect of the services on the DECT layers.25
5.1 Overview of the affected DECT layers .25
5.2 Mapping of the features .27
5.2.1 Speech .27
5.2.2 Bell on .27
5.2.3 Bell off .27
5.2.4 Off-hook .28
5.2.5 On-hook (full release).28
5.2.6 Partial release .28
5.2.7 Dialled digits (basic).28
5.2.8 Dialled digits (additional).28
5.2.9 Dialling delimiter.28
5.2.10 Dialling delimiter request.28
5.2.11 Register recall.28
5.2.12 Go to DTMF.28
5.2.13 Go to pulse .29
5.2.14 Pause (interdigit pause).29
5.2.15 Specific trunk carrier selection .29
5.2.16 Incoming call .29
5.2.17 Hold call.29
5.2.18 Re-connection of a held call.29
5.2.19 Forced re-connection .29
5.2.20 Authentication of PP.29
5.2.21 Authentication of user.29
5.2.22 Authentication of FP.29
5.2.23 Silent polling.30

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ETS 300 175-9: September 1996
5.2.24 Class of service field indication .30
5.2.25 Inter-operator roaming registration.30
5.2.26 Control of supervisory tones.30
5.2.27 Regular security handshake.30
5.2.28 Signalling of display characters.30
5.2.29 Display control characters .30
5.2.30 ZAP suspend.30
5.2.31 ZAP terminate.30
5.2.32 Alphanumeric text messaging and radiopaging service.31
5.2.33 Voice and user data traffic encryption activation/deactivation .31
5.2.34 Signalling traffic encryption activation/deactivation .31
5.2.35 Debit public access service .31
5.2.36 Credit public access service .32
5.2.37 Credit agency public access service.32
5.2.38 On-demand (hot-bill) public access service .32
5.2.39 Advice of tariff request.32
5.2.40 Advice of charge request.32
5.2.41 Location registration for incoming calls, paging or messages.32
5.2.42 Location de-registration for incoming calls, paging or messages.32
5.2.43 Queue management.32
5.2.44 Queue entry request.33
5.2.45 Queue exit request .33
5.2.46 PP inaccessible indication.33
5.2.47 In-range indication .33
5.2.48 Emergency service access request.33
5.2.49 Indication of teleservices available request .33
5.2.50 Indication of teleservices available .33
5.2.51 Selection of service provider/network operator.33
5.2.52 Selection of required teleservice .33
5.2.53 Selection of bearer service.33
5.2.54 Validation of PP user .34
5.2.55 Validation of PP.34
5.2.56 Validation of identity module .34
5.2.57 User identification .34
5.2.58 Group address .34
5.2.59 Selection of additional character sets .34
5.2.60 Data capability .34
5.2.61 Keypad protocol for supplementary services.34
5.2.62 Feature key management protocol for supplementary services.34
5.2.63 Functional protocol for supplementary services .34
5.2.64 Dial tone detection indication .35
5.2.65 Request for indication of (temporary) subscriber number .35
5.2.66 Portable part capability/FP capability data exchange.35
5.2.67 Subscription registration user procedure (on-air).35
5.2.68 Subscription registration user procedure (keypad).35
5.2.69 Subscription registration user procedure (DECT authentication module).35
5.2.70 Subscription data exchange (on-air) .35
5.2.71 Multicell FP coverage.35
5.2.72 Handover .35
5.2.73 Multiple subscription registration .36
5.2.74 All-physical-channel capability.36
6 Requirements regarding the NWK layer.36
6.1 Required procedures .36
6.1.1 CC procedures.36
6.1.2 MM procedures.37
6.1.3 COMS procedures.37
6.1.4 CLMS procedures .37
6.1.5 LCE procedures .38
6.1.6 Supplementary service procedures .38

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ETS 300 175-9: September 1996
6.1.7 Management procedures.38
6.2 Required messages in the PT and FT.38
6.3 Required mandatory information elements .42
6.3.1 Information elements in CC messages.43
6.3.2 Information elements in CISS messages.47
6.3.3 Information elements in MM messages.48
6.4 Coding of information elements in CC messages.51
6.4.1 Coding of mandatory information elements in CC messages.51
6.4.2 Coding of optional information elements in CC messages.52
6.5 Coding of information elements in MM messages.53
7 Requirements regarding the DLC layer.53
7.1 Control plane.53
7.1.1 Minimum requirements .53
7.1.2 Incoming call (feature 16).53
7.1.3 Alphanumeric text messaging and radiopaging service (feature 32).54
7.2 User plane .54
8 Mandatory requirements regarding the MAC layer.54
8.1 MAC layer services.54
8.1.1 Connection oriented services .54
8.1.2 Broadcast services .54
8.2 MAC layer procedures.54
8.2.1 Connection oriented service procedures .54
8.2.1.1 General.54
8.2.1.2 Antenna diversity in connection oriented services .55
8.2.1.2.1 Q1 setting in direction PT to FT .55
8.2.1.2.2 Antenna change due to FT reception
of Q1.55
8.2.1.2.3 Antenna change due to poor quality on slot received at FT .55
8.2.1.3 Information for handover.55
8.2.1.3.1 Q1 and Q2 setting in direction FT to
PT.55
8.2.1.3.2 PT reception of Q1 and Q2 .55
8.2.2 Broadcast procedures.56
8.3 Scrambling.56
8.4 Required messages.56
8.4.1 Header field.56
8.4.2 Messages in the tail field.57
8.4.2.1 Identities information (N tail).57
T
8.4.2.2 System information and multiframe marker (Q tail).57
T
8.4.2.3 Paging (P tail).57
T
8.4.2.4 MAC control (M tails) .57
T
8.4.3 Messages in the B-field.57
8.5 Monitoring of speech quality .57
9 MAC layer requirements for the optional features.58
9.1 Incoming call (feature 16).58
9.2 Alphanumeric text messaging and radiopaging service (feature 32).58
9.2.1 Alphanumeric service via the MAC broadcast service (case A) .58
9.2.2 Alphanumeric service via the MAC C/L downlink service (case B1) .59
9.2.3 Alphanumeric service via the MAC C/L downlink and uplink services (case
B2).59
9.3 Encryption (features 33 and 34).60
9.3.1 Connection oriented service procedures .60
9.3.2 System information and multiframe marker (Q tail) .60
T
9.3.3 MAC control (M tails).60
T
9.4 Selection of bearer service (feature 53).60
9.5 TARI request.60
9.5.1 Non-continuous broadcast procedure.61

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ETS 300 175-9: September 1996
9.5.2 MAC control (M tails).61
T
10 Requirements regarding the Physical Layer (PHL).61
10.1 General .61
10.2 Minimum Normal Transmit Power (NTP).61
10.3 Radio receiver sensitivity.61
10.4 Z-field.61
10.5 Sliding collision detection.61
11 Requirements regarding the speech transmission.62
11.1 General .62
11.2 User controlled volume control.62
11.3 PP ambient noise rejection capability feature.62
Annex A (informative): Message sequence diagrams.63
A.1 Outgoing call establishment.63
A.2 Incoming call establishment .64
A.3 Release initiated by the fixed termination.64
A.4 Release initiated by the portable termination.65
A.5 Location registration .65
Annex B (informative): Set-up attributes codings .66
Annex C (informative): DECT standard authentication algorithm.67
Annex D (informative): DECT standard cipher .68
Annex E (informative): Relationship to DECT Generic Access Profile (GAP).69
Annex F (informative): Bibliography.70
History .71

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ETS 300 175-9: September 1996
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ETS 300 175-9: September 1996
Foreword
This second edition European Telecommunication Standard (ETS) has been produced by the Radio
Equipment and Systems (RES) Technical Committee of the European Telecommunications Standards
Institute (ETSI).
This ETS forms part 9 of a series of 9 laying down the arrangements for the Digital Enhanced Cordless
Telecommunications (DECT) Common Interface (CI).
Part 1: "Overview".
Part 2 "Physical layer (PHL)".
Part 3 "Medium Access Control (MAC) layer".
Part 4 "Data Link Control (DLC) layer".
Part 5: "Network (NWK) layer".
Part 6: "Identities and addressing".
Part 7: "Security features".
Part 8: "Speech coding and transmission".
Part 9: "Public Access Profile (PAP)".
Further details of the DECT system may be found in ETR 015, ETR 043, and ETR 056 (see annex F).
Transposition dates
Date of adoption of this ETS: 6 September 1996
Date of latest announcement of this ETS (doa): 31 December 1996
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 June 1997
Date of withdrawal of any conflicting National Standard (dow): 30 June 1997

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ETS 300 175-9: September 1996
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ETS 300 175-9: September 1996
1 Scope
This second edition European Telecommunication Standard (ETS) is part of the Digital Enhanced Cordless
Telecommunications (DECT) Common Interface (CI) and specifies that set of technical requirements for
DECT Fixed Parts (FPs) and Portable Parts (PPs) necessary for the support of the Public Access Service
(PAS). It will also support other applications.
Apparatus for which DECT PAS capability is claimed has to comply with those technical requirements of
this ETS which are identified as provision mandatory.
Apparatus claiming the provision of any optional service feature listed in this ETS has to fully comply with
the corresponding process mandatory technical requirements.
2 Normative references
This ETS incorporates, by dated or undated reference, provisions from other publications. These normative
references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to, or revisions of, any of these publications apply to this only
when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies.
[1] ETS 300 175-1 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 1:
Overview".
[2] ETS 300 175-2 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 2: Physical
Layer (PHL)".
[3] ETS 300 175-3 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 3: Medium
Access Control (MAC) layer".
[4] ETS 300 175-4 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 4: Data
Link Control (DLC) layer".
[5] ETS 300 175-5 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network
(NWK) layer".
[6] ETS 300 175-6 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 6: Identities
and addressing".
[7] ETS 300 175-7 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 7: Security
features".
[8] ETS 300 175-8 (1996): "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT); Common Interface (CI); Part 8: Speech
coding and transmission".
[9] I-ETS 300 176: "Radio Equipment and Systems (RES); Digital Enhanced
Cordless Telecommunications (DECT) Approval test specification".
[10] CCITT Recommendation G.721 (1988): "32 kbit/s adaptive differential pulse
code modulation (ADPCM)".
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ETS 300 175-9: September 1996
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
antenna diversity: See ETS 300 175-1 [1].
attach: See ETS 300 175-1 [1].
authentication (of a subscriber): See ETS 300 175-1 [1].
bearer handover: See ETS 300 175-1 [1].
bearer service: See ETS 300 175-1 [1].
broadcast: See ETS 300 175-1 [1].
C-Plane: See ETS 300 175-1 [1].
call: See ETS 300 175-1 [1].
cell: See ETS 300 175-1 [1].
cluster: See ETS 300 175-1 [1].
connection handover: See ETS 300 175-1 [1].
Connectionless mode (C/L): See ETS 300 175-1 [1].
Connection Oriented mode (C/O): See ETS 300 175-1 [1].
Cordless Radio Fixed Part (CRFP): See ETS 300 175-1 [1].
coverage area: See ETS 300 175-1 [1].
DECT Network (DNW): See ETS 300 175-1 [1].
DLC data link (DLC link): See ETS 300 175-1 [1].
DLC frame: See ETS 300 175-1 [1].
double duplex bearer: See ETS 300 175-1 [1].
End System (ES): See ETS 300 175-1 [1].
external handover: See ETS 300 175-1 [1].
Fixed Part (DECT Fixed Part) (FP): See ETS 300 175-1 [1].
Fixed radio Termination (FT): See ETS 300 175-1 [1].
fragment: See ETS 300 175-1 [1].
fragmentation: See ETS 300 175-1 [1].
frame: See ETS 300 175-1 [1].
Global Network (GNW): See ETS 300 175-1 [1].

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ETS 300 175-9: September 1996
handover: See ETS 300 175-1 [1].
incoming call: See ETS 300 175-1 [1].
intercell handover: See ETS 300 175-1 [1].
internal handover: See ETS 300 175-1 [1].
interoperability: See ETS 300 175-1 [1].
interoperator roaming: See ETS 300 175-1 [1].
Interworking Unit (IWU): See ETS 300 175-1 [1].
intracell handover: See ETS 300 175-1 [1].
intraoperator roaming: See ETS 300 175-1 [1].
Local Network (LNW): See ETS 300 175-1 [1].
location area: See ETS 300 175-1 [1].
location registration: See ETS 300 175-1 [1].
logical channel: See ETS 300 175-1 [1].
Lower Layer Management Entity (LLME): See ETS 300 175-1 [1].
MAC bearer (bearer): See ETS 300 175-1 [1].
MAC connection (connection): See ETS 300 175-1 [1].
network (telecommunication network): See ETS 300 175-1 [1].
operator (DECT operator): See ETS 300 175-1 [1].
outgoing call: See ETS 300 175-1 [1].
paging: See ETS 300 175-1 [1].
paging area: See ETS 300 175-1 [1].
Portable Handset (PHS): See ETS 300 175-1 [1].
Portable Part (DECT Portable Part) (PP): See ETS 300 175-1 [1].
Portable radio Termination (PT): See ETS 300 175-1 [1].
private: See ETS 300 175-1 [1].
public: See ETS 300 175-1 [1].
Public Access Profile (PAP): See ETS 300 175-1 [1].
public access service: See ETS 300 175-1 [1].
radio end point: See ETS 300 175-1 [1].
Radio Fixed Part (RFP): See ETS 300 175-1 [1].

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ETS 300 175-9: September 1996
Repeater Part (REP): See ETS 300 175-1 [1].
roaming: See ETS 300 175-1 [1].
roaming service: See ETS 300 175-1 [1].
segment: See ETS 300 175-1 [1].
segmentation: See ETS 300 175-1 [1].
service provider (telecommunications service provider): See ETS 300 175-1 [1].
sequencing (sequence numbering): See ETS 300 175-1 [1].
Single Radio Fixed Part (SRFP): See ETS 300 175-1 [1].
subscriber (customer): See ETS 300 175-1 [1].
subscription registration: See ETS 300 175-1 [1].
Supplementary Service (SS): See ETS 300 175-1 [1].
TDMA frame: See ETS 300 175-1 [1].
telecommunication: See ETS 300 175-1 [1].
teleservice: See ETS 300 175-1 [1].
TPUI domain: See ETS 300 175-1 [1].
U-Plane: See ETS 300 175-1 [1].
user (of a telecommunication network): See ETS 300 175-1 [1].
Wireless Relay Station (WRS): See ETS 300 175-1 [1].
3.2 Abbreviations
For the purposes of this ETS the following abbreviations apply.
ADPCM Adaptive Differential Pulse Code Modulation
ARI Access Rights Identity
C/L Connectionless mode
C/O Connection Orientated mode
CC Call Control
CI Common Interface
CLMS Connectionless Message Service
COMS Connection Oriented Message Service
C-Plane Control Plane
CRFP Cordless Radio Fixed Part
DECT Digital Enhanced Cordless Telecommunications
DLC Data Link Control
DNW DECT Network
DTMF Dual Tone Multi-Frequency
ES End System
FP Fixed Part
FT Fixed radio Termination
GNW Global Network
IPUI International Portable User Identity

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ETS 300 175-9: September 1996
IWU Interworking Unit
LCE Link Control Entity
LLME Lower Layer Management Entity
LNW Local Network
MM Mobility Management
PAP Public Access Profile
PARK Portable Access Rights Key
PAS Public Access Service
PHL Physical, layer 1 of the DECT protocol stack
PHS Portable Handset
PP Portable Part
PT Portable radio Termination
REP Repeater Part
RFP Radio Fixed Part
SRFP Single Radio Fixed Part
SS Supplementary Services
TDMA Time Division Multiple Access
TM Test Management
TPUI Temporary Portable User Identity
UPI User Personal Identification
U-Plane User Plane
UT Upper Tester
WRS Wireless Relay Station
4 Features for the public access service
4.1 Description of the features
4.1.1 Speech
Circuit-mode 32 kbit/s unrestricted 8 kHz structured bearer service category suitable for speech
information transfer (CCITT Recommendation G.721 (1988), [10]).
4.1.2 Bell on
Activates bell or other user indication controlling process at the target apparatus.
4.1.3 Bell off
Deactivates bell or other user indication controlling process at the target apparatus.
4.1.4 Off-hook
The ability to indicate the action of going off-hook, e.g. to start call set-up or accept a call.
4.1.5 On-hook (full release)
The ability to indicate the action of going on-hook (e.g. to terminate a call) and fully release the radio
resource.
4.1.6 Partial release
The ability to release an established call whilst retaining the radio resource for the purpose of accessing
further services.
4.1.7 Dialled digits (basic)
The capability to dial digits 0-9, *, #.

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ETS 300 175-9: September 1996
4.1.8 Dialled digits (additional)
The capability to dial digits A, B, C, D (in addition to the basic digits).
4.1.9 Dialling delimiter
A means to generate or otherwise to indicate "end-of-destination-address" when dialling or transmitting
dialled digits.
4.1.10 Dialling delimiter request
The ability to advise that a dialling delimiter is required.
4.1.11 Register recall
To hold an existing call and seize a register (with dial tone) to permit input of further digits or other action.
4.1.12 Go to DTMF
Go to DTMF signalling, with optional indication of Dual Tone Multi-Frequency (DTMF) tone duration.
4.1.13 Go to pulse
Go to pulse (decadic) signalling.
4.1.14 Pause (interdigit pause)
The ability to generate or indicate an inter-digit pause, e.g. to await further dial tone.
4.1.15 Specific trunk carrier selection
The ability to select a specific trunk carrier for a call through a global network.
4.1.16 Incoming call
A call received at a DECT PP.
4.1.17 Hold call
The ability to hold calls while other services are accessed.
4.1.18 Re-connection of a held call
The re-connection of a previously held call.
4.1.19 Forced re-connection
The forced re-connection of a call which, e.g. has been left on hold for an excessive period of time.

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ETS 300 175-9: September 1996
4.1.20 Authentication of PP
The process by which the identity of a DECT PP is checked by the FP.
The standard (common) authentication algorithm shall be built-in to the cordless PP.
The standard (common) authentication algorithm shall be accepted for authentication of roaming public
access service PP.
User authentication key and authentication code to be supported.
Time from initial request for service to completion of successful authentication process should not exceed 2
seconds.
4.1.21 Authentication of user
The process by which the identity of a DECT user is checked by the FP.
The User Personal Identification (UPI), a personal identification of 4 to 8 digits, manually entered by the
user via the keypad, is used for user authentication.
4.1.22 Authentication of FP
The process by which the identity of a FP is checked by the PP.
It is optional to support the authentication of FT in both the PT and FT. If, however, ZAP, key management
or PP data amendment is implemented in the FT then it is mandatory in the FT to support authentication of
FT. The process is the same as that defined for authentication of PT.
User authentication key and authentication code to be supported.
NOTE: They are the same as those for PT, but different for each operator.
4.1.23 Silent polling
The ability of a DECT FP to establish whether a specific PP is within range without alerting the user of that
PP.
4.1.24 Class of service field indication
Indication to the FP by the PP of the contents of its class-of-service field. The information passed across
may vary depending on the system/network/service provider with whom communication is currently made,
as class-of service may vary from one subscription to the other.
4.1.25 Inter-operator roaming registration
The ability to exchange inter-operator roaming data in real time over the air interface during the first
call-attempt between the PP of a subscriber of a home DECT service provider A and the FP of a visited
DECT service provider B, assuming A and B have agreed to offer inter-operator roaming to their
respective subscribers.
4.1.26 Control of supervisory tones
Control of a variety of supervisory (call progress) tones, which may be generated in the PP.
For the public access service, network supervisory signals shall be made available in-band to the PP by
the FP, either by relay from the global or extended services network, or by local generation at the PP.
The provision of a tone generator is optional for public access service PPs.

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ETS 300 175-9: September 1996
4.1.27 Regular security handshake
Regular interchange of information (link identifier) between PP and FP during the period between link
initiation and link termination to maintain link in normal operation and to reject unauthorised attempts to
seize link. Interchange at intervals of the order of 1 second is acceptable.
4.1.28 Signalling of display characters
The transmission to the PP of characters to be displayed on the user's PP display (if provided).
4.1.29 Display control characters
Characters sent to the PP to control the user's display in the PP (if provided). Such characters include
cursor control, clear screen, home, flash, inverse video etc.
4.1.30 ZAP suspend
The ability to re-program the account data held in the PP so that access rights are suspended subject to
the conditions set by the service provider being met, coupled with the ability to re-program the account
data again to reinstate access rights once these conditions have been met. One ZAP field shall be
provided per account field. The PP has the right to
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