ETSI - PRETS 300 190
Generic Stimulus Procedure for the Control of Supplementary Services Using the Keypad Protocol at the S Reference Point
| Organization: | ETSI |
| Publication Date: | 1 January 1991 |
| Status: | inactive |
| Page Count: | 27 |
scope:
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). A PTN consists of one or more interconnected Private Telecommunication Network Exchanges (PTNX), and therefore an interface at the S reference point is actually between a TE and a PTNX. The S reference point is defined in Standard ECMA-133.
The Keypad protocol operates in conjunction with the signalling protocol specified ECMA-106. It is based on use of the Keypad facility and Display information elements. While the generic procedures associated with keypad invocation are specified in this standard, the allocation of the access codes used to request or indicate a supplementary service are not standardized.
This Standard is applicable to TEs which are intended for connection to PTNs, and is also applicable to the user accesses of PTNs.
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