1.21 Integrated Services Digital Network (ISDN) Service Features
Feature Guide 269
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.
Programming Manual References
PC Programming Manual
2.10.5 [4-1-4] Wired Extension—Flexible Button
→ Ty p e
→ Dial (for ISDN Service)
2.10.13 [4-2-3] Portable Station—Flexible Button
→ Ty p e
→ Dial (for ISDN Service)
2.10.17 [4-3] DSS Console—Flexible Button
→ Ty p e
→ Dial (for ISDN Service)
PT Programming Manual
None
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)