| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| 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
|
| GB/T 14733.4-2012 |
Terminology for telecommunication switching and signalling in telecommunication |
|
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 |
 (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 |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| 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
|
| GF 018-1995 |
|
 (USD) |
via email in
1-3 business day
|
|
|
| GB/T 28524-2012 |
Media Gateway Control Protocol(MGCP) |
 (USD) |
via email in
1-10 business day
|
VALID
|
|
| GB 3377-1982 |
Multi frequency register signalling system for telephone antomatic switching network |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB 3971.2-1983 |
Interoffice junction digital line signalling system for telephone automatic switching network |
|
via email in
1-3 business day
|
|
please email coc@codeofchina.com for quotation
|
| YD/T 1239-2002 |
Access Network Technical Specifications-Very-high-speed Digital Subscriber Line |
 (USD) |
via email in
1-10 business day
|
|
|
| YD/T 1938.2-2009 |
Test method for Session Initiation Protocol (SIP) Part 2:SIPs Applications about Call Control Basedon Softswitch Network |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 28505-2012 |
Technical specification of national No.7 signalling system 2 Mbit/s high speed link |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 14401-1993 |
Signalling between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB 3376-1982 |
Inband pulsing single frequency line signalling system for telephone automatic switching network |
|
via email in
1-3 business day
|
|
please email coc@codeofchina.com for quotation
|
| YD/T 1193.3-2002 |
Bearer independent call control specification-Part3:procedure of BICC |
 (USD) |
via email in
1-8 business day
|
VALID
|
|
| YD/T 1938.1-2009 |
Test method for Session Initiation Protocol (SIP) Part 1：Basic Session Initiation Protocol |
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB 3378-1982 |
Subscriber line signalling system for telephone automatic switching network |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| YD/T 958-1998 |
Digital subscriber signalling system No.1(DSS1)-signalling specification for frame mode basic call control |
 (USD) |
via email in
1-8 business day
|
VALID
|
|
|
|
