Call Retention Function Status In Ip Equipment/Terminals - NEC Univerge sv8500 Manual

4.2

Call Retention Function Status in IP Equipment/Terminals

The following table shows the operation of IP equipment/terminals when a fault occurs during a conver-
sation.
The table describes information when Call Retention function is activated in IP equipment/terminals. If
IP equipment/terminals have particular conditions such as the case that Call Retention function becomes
inactive, the conditions are noted below the table.
* Call Retention function is used to retain a conversation in progress if a fault occurs.
IP Equipment/Terminal
(Note 1, Note 17)
DtermIP (Proprietary Protocol)
Note 4
( )
Note 4 Note
DtermIP (SIP) ( ,
5
)
Note 4 Note
DT700 Series ( ,
5
)
WLAN Handset (MH250)
Note 4 Note 6
( , )
Time Duration
Required
Call can be
Firmware
retained
(Note 2)
(Note 3)
Ver. 2.00 or
later No Limit
Note 7
( )
Ver. 4.0.0.0
No Limit
or later
Ver. 4.0.0.0
No Limit
or earlier
No Condition No Limit
Terminal: No Limit
No Condition Telephony Server:
Guard for 63 min.
INT-7
Event which causes the discon-
tinuation of Call/Call Retention
function
Handset:
• When going on-hook
• Key operation on terminal
• When receiving system reset signal
Headset/Speaker:
• Key operation on terminal
• When receiving system reset signal
Note 8
( )
Handset:
• When going on-hook
• When receiving system reset signal
Headset/Speaker:
• Key operation on terminal
• When receiving system reset signal
Note 8
( )
Handset:
• When going on-hook
• Key operation on terminal
• When receiving system reset signal
Headset/Speaker:
• Key operation on terminal
• When receiving system reset signal
Note 8
( )
Handset:
• When going on-hook
• When receiving system reset signal
Headset/Speaker:
• Key operation on terminal
• When receiving system reset signal
Note 8
( )
Key operation on terminal
INTRODUCTION
Remarks