Euroisdn Malicious Call Identification - Nortel Meridian Meridian 1 Feature Description And Administration

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553-2901-301 Standard 9.00 January 2002
EuroISDN ETS 300 403 Compliance Update
A EuroISDN link can be used as a B-Channel for the VNS feature.
Commonwealth of Independent States Phase II, MF Shuttle
The gateway between EuroISDN and the CIS MF Shuttle is supported.
Interworking with KD3
No interworking with KD3 is supported.
Advice Of Charge
Network Call Transfer, Network Call Redirection
Advice of Charge is not supported network wide. If a call is transferred to
another Meridian 1 node, the charging information is stored against the Route
meter. Relevant CDR S, X and E records are output on the TTY.
Call Completion on Busy Subscriber
The CCBS service is developed on EuroISDN interfaces as an ETSI service.
The service is supported for all EuroISDN countries compliant with the ETSI
CCBS protocol As a result, each country requires detailed study to insure that
the CCBS service offered is compliant with the ETSI CCBS protocol.

EuroISDN Malicious Call Identification

Disconnection of the basic call
On reception of a DISCONNECT message for an incoming EuroISDN trunk
which has MCID configured, clearing of the call is delayed until the MCTM
timer expires or until the called user goes on-hook.
The MCTM timer will only be started depending on the class of service of the
set connected to the EuroISDN trunk. It can also be started if the MTND
prompt is configured in the route data block in case of a MCDN to EuroISDN
gateway. Otherwise, the connection will not be held.
In band timer (T306)
For an incoming EuroISDN call, a DISCONNECT message is sent from the
network side with a Progress Indicator (PI) Number 8, so that the T306 timer
should delay the sending of the release message. If for the same call the
Malicious Call Trace Timer (MCTM in the Route Data Block, LD 16) is
applicable, then it is the T306 timer that takes precedence in order to avoid
any in-band information to be cut.