| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| YD/T 1304-2004 |
Test specification for national No.7 signalling system - Message Transfer Part (MTP)and Telephone User Part (TUP) |
$4350.00 |
via email in 1~3 business day |
valid,,2004-2-9 |
|
| YD/T 1309-2004 |
Bearer independent call bearer control specification |
$1500.00 |
via email in 1~3 business day |
valid,,2004-2-9 |
|
| YD/T 1522.31-2009 |
Technical Requirements for Session Initiation Protocol Part 3 Interworking between ISUP and SIP-Supplement 1 |
$180.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1522.4-2009 |
Technical Requirements for Session Initiation Protocol Part 4 SIPs Applications about call control Based on Softswitch Network |
$340.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1662-2007 |
Testing Methods for National No.7 Signalling System——GSM Mobile Telephone User Part (MTUP) |
$1050.00 |
via email in 1~3 business day |
valid,,2007-12-1 |
|
| YD/T 1663-2007 |
Testing Methods for Bearer Independent Call Control |
$1020.00 |
via email in 1~3 business day |
valid,,2007-12-1 |
|
| YD/T 1684-2007 |
Technical Requirements and Testing Methods for the Billing of the Digital Cellular Mobile Telecommunication Network Point to Point Short Message Service |
$270.00 |
via email in 1~3 business day |
superseded,2015-7-14,2008-1-1 |
|
| YD/T 1918-2009 |
Test Methods for the Adaptation Layer of ISDN Signalling Interworking with IP |
$750.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1919-2009 |
Test Methods for V5.2 User Adaptation Layer |
$180.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1936-2009 |
Technical Requirements for Session Description Protocol |
$480.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1938.1-2009 |
Test method for Session Initiation Protocol (SIP) Part 1：Basic Session Initiation Protocol |
$4470.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 1938.2-2009 |
Test method for Session Initiation Protocol (SIP) Part 2:SIPs Applications about Call Control Basedon Softswitch Network |
$780.00 |
via email in 1~3 business day |
valid,,2009-9-1 |
|
| YD/T 4158-2022 |
Technical requirements of network interworking for number portability |
$330.00 |
via email in 1~5 business day |
valid,,2023-1-1 |
|
| YD/T 4161-2022 |
User Interface and Procedure Requirements for Number Portability |
$300.00 |
via email in 1~5 business day |
valid,,2023-1-1 |
|
| YD/T 4163-2022 |
Technical Requirements for Non-Telecom Operators to Support Number Portability |
$195.00 |
via email in 1~3 business day |
valid,,2023-1-1 |
|
| YD/T 887-1997 |
Regulations for session initiation period of data transmission over public telephone network |
$130.00 |
via email in 1~3 business day |
abolished2009-12-01,,1997-7-1 |
|
| YD/T 913-1997 |
Digital subscriber signalling system No.1(DSS1)－typical DSS1 service indicator codings for ISDN telecommunications services |
$630.00 |
via email in 1~3 business day |
valid,,1998-1-1 |
|
| YD/T 958-1998 |
Digital subscriber signalling system No.1(DSS1)-signalling specification for frame mode basic call control |
$910.00 |
via email in 1~5 business day |
valid,,1998-9-1 |
|
| YDC 048-2007 |
Overall Technical Specification for ENUM |
$750.00 |
via email in 1~3 business day |
valid,,2007-3-16 |
|
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