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FXS supplementary services description 410
SmartWare Software Configuration Guide 35 • FXS interface configuration
FXS supplementary services description
FXS interfaces offer a set of supplementary services. Some of these services are locally terminated. Others, like
conferencing, push the involved subscribers to an external service. These supplementary services are:
• Call hold (see page 411)
• Call waiting (see page 411)
• Call waiting reminder ring (CWRR) (see page 411)
• Drop passive call (held or waiting) (see page 412)
• Drop active call (connected call), accept passive call (held or waiting) (see page 412)
• Call toggle (see page 412)
• Call transfer (see page 412)
• Conferencing (see page 413)
• Call park (see page 413)
Note The local subscriber is always the one who executes the service.
The services call hold and call waiting allow the local subscriber to open or accept a second call. This is the
condition for all the other services that are applied as soon as the local subscriber has two calls initiated to
remote subscribers. That means the call hold service can only be applied as long as only one call is ongoing. All
the above described service can be executed by a key pattern. Some of these services have permanent patterns
for the others they can be configured by the user.
Note The flash pattern always has the short notation, '!'.
Table 14. FXS services with permanent patterns
Service Default Pattern
Call hold !
Call transfer On-Hook
Table 15. FXS services with configurable patterns
Service Default Pattern
Drop passive call !0
Drop active call, accept passive call !1
Call toggle !2
Conferencing !3
Call park *98