UNIVERGE SV8300 Features and Specifications Manual (ISDN/Q-SIG)
NWA-033632-001, Issue 1
Page 39
Overlap Sending - Q-SIG
Overlap Sending - Q-SIG
General Description
Overlap Sending is available for an outgoing call from the SV8300 to Q-SIG 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
■ General Conditions
1. This feature conforms to following ETSI standard.
ETS 300 172
2. The PRI blade is required.
3. Overlap Sending can be selected every Q-SIG origination trunk route, but cannot be selected every called
number.
4. When a called number exceeds the overlapped digits set by system data in Q-SIG call origination from an
extension or trunk, the called number for overlapped digits is sent to Q-SIG 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 is common to ORT timer (15 seconds fixed).
8. Number development in call origination to Q-SIG 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. If the own office trunk is idle and the distant office is busy when a call is originated with Overlap Sending,
the originating office cannot route the call to another route.
11. Route advance is available.
12. The maximum number of sending digits in SETUP or INFO message is 24 digits.
13. Voice call is supported, but data call is not supported.
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