| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| SL 417-2016 |
|
|
via email in
|
|
please email coc@codeofchina.com for quotation
|
| YD/T 1522.31-2009 |
Technical Requirements for Session Initiation Protocol Part 3 Interworking between ISUP and SIP-Supplement 1 |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1522.4-2009 |
Technical Requirements for Session Initiation Protocol Part 4 SIPs Applications about call control Based on Softswitch Network |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1127-2001 |
Technical Requiremnet of Interworking between No.7 Signalling and IP |
495 (USD) |
via email in
1-5 business day
|
VALID
|
|
| YD/T 913-1997 |
Digital subscriber signalling system No.1(DSS1)－typical DSS1 service indicator codings for ISDN telecommunications services |
765 (USD) |
via email in
1-8 business day
|
VALID
|
|
| YD/T 1296-2003 |
Technical specification for public IP voice switch |
390 (USD) |
via email in
1-3 business day
|
VALID
|
|
| YD/T 887-1997 |
|
150 (USD) |
via email in
1-3 business day
|
|
|
| YD/T 1663-2007 |
Testing Methods for Bearer Independent Call Control |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1309-2004 |
Bearer independent call bearer control specification |
1575 (USD) |
via email in
1-10 business day
|
VALID
|
|
| YDC 048-2007 |
Overall Technical Specification for ENUM |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB 3379-1982 |
Interoffice direct signalling system for telephone automatic switching network |
375 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| YD/T 1304-2004 |
Test specification for national No.7 signalling system--Message Transfer Part (MTP)and Telephone User Part (TUP) |
4800 (USD) |
via email in
1-10 business day
|
VALID
|
|
| YD/T 1250-2003 |
Test method for access network——passive optical netwrok based on ATM (A-PON) |
690 (USD) |
via email in
1-5 business day
|
VALID
|
|
| 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 |
|
via email in
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| YD/T 1662-2007 |
Testing Methods for National No.7 Signalling System——GSM Mobile Telephone User Part (MTUP) |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB 3380-1982 |
Ringing and tone for telephone automatic switching network |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1936-2009 |
Technical Requirements for Session Description Protocol |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1254-2003 |
Access network technical specification-TDD based Ethernet Digital Subscriber Line system (TDD-EDSL):variable length frame transmission mode |
630 (USD) |
via email in
1-5 business day
|
VALID
|
|
| YD/T 1919-2009 |
Test Methods for V5.2 User Adaptation Layer |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1193.1-2002 |
Bearer independent call control specification-Part 1:functional of BICC |
165 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
