1.21.1.12 ISDN Service Access by Keypad Protocol
Description
ISDN provides some supplementary services by key protocol, and they may require a service access code to
be dialled.
Conditions
• This feature complies with the following European Telecommunication Standard (ETS) specification:
– ETS 300 122 Generic keypad protocol for the support of supplementary service (ISDN Service Access).
• ISDN Service Button
A flexible button can be customised as an ISDN Service button. A service access code can also be assigned
on this button for a quick operation.
• This feature is not available to an SLT.
PC Programming Manual References
6.5 [4-1-4] Wired Extension—Flexible Button
→ Type
→ Dial (for ISDN Service)
6.13 [4-2-3] Portable Station—Flexible Button
→ Type
→ Dial (for ISDN Service)
6.17 [4-3] DSS Console
→ Type
→ Dial (for ISDN Service)
Feature Guide References
1.20.2 Flexible Buttons
3.1 Capacity of System Resources
User Manual References
1.2.5 Accessing the ISDN Service (ISDN Service Access)
252 Feature Guide
1.21.1 Integrated Services Digital Network (ISDN)
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