Overlap Sending - NEC Univerge SV8300 Manual

Overlap Sending

Overlap Sending

General Description
Overlap Sending is available for an outgoing call from the SV8300 to ISDN network.
Overlap Sending is a procedure, used in call establishment of an outgoing call, to enable the user to send called
party number digits to the network in successive messages.
Operating Procedure
No manual operation is required.
Service Conditions
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General Conditions
1. This feature conforms to following ETSI standard.
ETS 300 102-1
ETS 300 102-2
ETS 300 403-1
2. The 2BRI or the PRI blade is required.
3. Overlap Sending can be selected every ISDN origination trunk route, but cannot be selected every called
number.
4. When a called number exceeds the overlapped digits set by system data in ISDN call origination from an
extension or trunk, the called number for overlapped digits is sent to ISDN network through the called num-
ber information element of SETUP message. Moreover, called number afterward is sent out through the
called number information element of INFO message.
5. At the time of sending the last digit of called number, it is sent adding the sending complete information
element on INFO message.
6. When a user stops dialing before sending the last digit of called number, the SV8300 sends INFO message
including the sending complete information element after ORT timeout (15 seconds).
7. T304 timer (30 seconds, option) is not supported.
8. Number development in call origination to ISDN is only available for call origination with LCR, not for call
origination with trunk route.
9. Addition and deletion of number is available in system data programming (LCR number development).
10. When number deletion (deletion of area code) is set by system data (LCR number development), the number
of digits of called number in SETUP message sent to ISDN from the SV8300 becomes 20 digits minus de-
leted digits. In this case, since the number of digits dialed by users differs from the number of digits sent to
ISDN from the SV8300, it is required to set the maximum number of digits by system data respectively.
Page 30
UNIVERGE SV8300 Features and Specifications Manual (ISDN/Q-SIG)
NWA-033632-001, Issue 1