| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| 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 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 1287-2003 |
Test specification for ethernet LAN switch with routing capability |
1080 (USD) |
via email in
1-8 business day
|
ABOLISHED
|
|
| 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
|
|
| 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 1449.1-2006 |
Equipment Technical Requirements for Broadband Customer Network Based on Telecommunication Network Part 1:Gateway |
390 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| YD/T 928-1997 |
Technical specification for ISDN PABXs |
250 (USD) |
via email in
1 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
|
| SL 417-2007 |
Automatic telephone number for telephone network of water resources |
|
via email in
|
ABOLISHED
|
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 1919-2009 |
Test Methods for V5.2 User Adaptation Layer |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 2042-2009 |
IPv6 network equipment security requirements——Ethernet switch with routing capability |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 1918-2009 |
Test Methods for the Adaptation Layer of ISDN Signalling Interworking with IP |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GA 330-2001 |
Transmission technology protocol of alarm for 351 MHz |
90 (USD) |
via email in
1-3 business day
|
|
|
|
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