-
YD/T 4158-2022 in English
Technical requirements of network interworking for number portability
valid
Issued on:2022-09-30
$616.00 -
YD/T 4161-2022 in English
User Interface and Procedure Requirements for Number Portability
valid
Issued on:2022-09-30
$560.00 -
YD/T 4163-2022 in English
Technical Requirements for Non-Telecom Operators to Support Number Portability
valid
Issued on:2022-09-30
$364.00 -
GB/T 14733.4-2012 in English
Terminology for telecommunication switching and signalling in telecommunication
valid
Issued on:2012-11-05
$1,560.00 -
-
GB/T 28502-2012 in English
Technical requirement of interworking between No.7 signalling and IP
valid
Issued on:2012-06-29
$1,280.00 -
-
GB/T 28505-2012 in English
Technical specification of national No.7 signalling system 2 Mbit/s high speed link
valid
Issued on:2012-06-29
$640.00 -
GB/T 28506-2012 in English
Technical specification for national No.7 signalling system—GSM mobile telephone user part (MTUP)
valid
Issued on:2012-06-29
$2,160.00 -
GB/T 28510-2012 in English
Technical specification of stream control transmission protocol
valid
Issued on:2012-06-29
$2,080.00