Aastra Ascotel IntelliGate A150 System Manual page 395

If B is making an exchange all,
abled for exchange calls, throughout the system.
Notes:
– In connection with the
protection regulations must be observed.
– One Silent Intrusion
sion feature.
– Silent intrusion is not possible in all cases and in certain cases may
cause a crackling sound (see
– Analogue terminals cannot switch directly from the
state to Intrusion. The microphone is always active with these termi-
nals.
Connections overview
Silent intrusion is not possible in all cases and not absolutely silent. For IP-IP, IP-SIP
and SIP-SIP connections, the media is switched directly and not via the system. In
these cases the connection must first be fetched into the system for the intrusion,
causing a faint crackling. Prerequisites for this procedure are sufficient VoIP licenses
and DSP resources.
Tab. 220 Silent intrusion: Connections
Existing connection combination
External (ISDN, a/b) — internal (any)
External SIP — internal (AD2, DECT, ISDN, a/b)
External SIP — internal (IP, SIP)
Internal (IP, SIP) — internal (IP, SIP)
Internal (AD2, DECT, ISDN, a/b) — internal (AD2, ISDN, a/b, IP,
SIP)
Internal (DECT) — internal (DECT)
External (any) — external (any)
Features
System Functions and Features as of I7.9
Silent intrusion will only work if this feature is also en-
Silent intrusion
licence is required to be able to use the
Tab. 220).
feature, relevant national data
Silent intrusion
Intruding terminal
AD2, DECT, IP, a/b
Silent
Silent
Audible crackling
Audible crackling
Silent
Not possible
Not possible
Silent intru-
ISDN, SIP
Not possible
Not possible
Not possible
Not possible
Not possible
Not possible
Not possible
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