Foreword
Section one. General requirements for cordless fixed
and portable parts
0 Introduction
1 Scope
2 Abbreviations and definitions
3 Facilities and functions
4 Marking and labelling
5 Information to be provided by the supplier
6 Radio frequency interface
7 Signalling layers one, two and three
8 Speech coding
Section two. General, electrical and acoustic
characteristics specific to cordless
portable parts
9 CPP General
10 Not assigned
Section three. General, electrical and acoustic
characteristics specific to cordless
fixed parts
11 CFP General
12 CFP Marking
13 CFP Safety
14 Multi-frequency (MF) tone signalling
15 Special signalling conditions
16 Off-line: idle state
17 Off-line: ringing state
18 On-line: non-signalling state
19 On-line: signalling state
20 Speech transmission
20.1 General
20.2 Sending characteristics
20.3 Receiving characteristics
20.4 Send and receive loudness ratings
20.5 Sidetone loudness ratings
20.6 Distortion and clipping
20.7 Noise
20.8 Limits of signals sent to line
20.9 Delay
20.10 Cross talk
20.11 Out-of-band signals
21 Electrical PSTN connection methods
22 Call control
Appendices
A General conditions of test
B Speech and telephony tests
Tables
1 Classification
2 Co-ordinates of voltage limit curves for d.c.
characteristics
3 Co-ordinates of sending characteristic
4 Co-ordinates of receiving characteristic
5 Electro-acoustic performance assumed for the
reference CPP
6 Loudness rating values
7 Allocation of plug pins
8 Frequency/sensitivity response of reference codec
9 Parameters required to calculate SLRB, RLRB and
STMRB
10 Frequencies for delay measurements
Figures
1 Circuit for speech immunity testing of ringing
detector
2 D.C. characteristics
3 Sending sensitivity-frequency characteristics
mask
4 Receiving sensitivity-frequency characteristics
mask
5 Simplified transmission plan
6 Circuit for sending and receiving measurements
7 The local telephone system (LTS)
8 Artificial line segment, 0.1 km length
9 Feeding bridge
10 Reference connections
11 Not assigned
12 Test hammer
13 Test configuration
14 Reference CPP sending sensitivity-frequency
characteristic (SRMD)
15 Reference CPP receiving sensitivity-frequency
characteristic (SRDe)
16 Limits of ambient noise for speech transmission
tests