TTC Original Standard translated into English LIST
| Standard | Title |
| JJ-20.10 : JJ-20.11 : JJ-20.12 : JJ-20.20 : JJ-20.21 : JJ-20.22 : JJ-20.23 : JJ-20.30 : JJ-20.31 : JJ-20.32 : JJ-20.40 : JJ-20.50 : JJ-20.60 : JJ-21.10 |
PBX |
|
JJ-20.24: |
VoIP(IP-QSIG) Protocol Specifications for IP Intrane Networks |
|
JJ-20.70 |
Private Integrated Services Network |
|
JJ-20.80 |
TTC2M Circuit Emulation Service Interoperability Specification for Private ATM Network |
|
JJ-20.81 |
Usage of Physical Layer for Interconnecting ATM Equipment through Leased Line and ISDN |
|
JJ-30.10 |
Telematics |
|
JJ-50.10 |
Digital Transmission System for Metallic Local Lines in the Public Data Networks |
|
JJ-50.20 |
Digital Transmission System on Optical Local Lines for Leased Line Service of up to 6144 kbit/s |
|
JJ-50.30 |
Physical Layer Specifications of 155520kbit/s Optical Subscriber Line |
|
JJ-90.10 |
Inter Carrier Interface based on ISUP |
| JJ-90.21 | Technical Specification of a Framework for Provider’s SIP Networks |
| JJ-90.22 | Technical Specification on Network Asserted User Identity Information Transferring through Provider’s SIP Networks |
| JJ-90.24 | Technical Specifications on Basic Call Interface for SIP Terminals Connecting with Provider’s SIP Network |
| JJ-90.25 | Technical Specifications on Inter-Carrier Interface between Managed Provider's SIP Networks |






