Standard ECMA-156
Private Telecommunication Networks (PTN)
- Signalling at the S Reference Point - Generic Keypad Protocol
for the Support of Supplementary Services (SSIG-KP)
2nd edition (June 1993)
This Standard defines the Keypad signalling protocol for the
purpose of supplementary service control at an interface at the
S reference point between a Terminal Equipment (TE) and a Private
Telecommunication Network (PTN).
The Keypad protocol operates in conjunction with the signalling
protocol specified in ETS 300 192. It is based on use of the Keypad
facility and Display information elements. While the procedures
associated with keypad invocation are specified in this Standard,
the allocation of the access codes used to request or indicate
a supplementary service is outside the scope of this Standard.
This Standard is applicable to TEs which are intended for connection
to PTNs, and is also applicable to the user accesses of PTNs.
The following file can be freely downloaded:
| File name |
Size (Bytes) |
Content |
| ECMA-156.pdf |
123 923 |
Acrobat (r) PDF file |
The previous replaced "historical" edition of this Ecma Standard is available here.
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