Technical data

Call Handling 1-53
Chapter 1: Basic System Features
SBX IP Programming & Operations Guide
Extend CO-to-CO Connection
When a call is made between two analog CO lines using DISA or off-net call forward, the call
duration is limited by the Unsupervised Conference Timer. After the Unsupervised Conference
Timer expires, the system drops the call. The Extend CO-to-CO Connection can be used to
extend the unsupervised conference time.
CONDITIONS
• If this feature is activated, the DTMF receiver device is assigned to caller-side CO lines.
• At least one IDLE DTMF device must exist.
• This feature is only available on analog CO-to-CO calls using DISA or off-net call forward.
• When the CO-to-CO feature is activated, the two analog CO lines involved in the
conversation will hear a warning tone 15 seconds before the unsupervised conference
timer expires and the call is disconnected.
ADMIN PROGRAMMING
Enable Unsupervised Conference Timer Extend
Set Unsupervised Conference Timer Extend Code
Set Unsupervised Conference Timer
Use PGM 182, then FLEX 6 … see page 1-87.
OPERATION / SETUP
To extend call duration:
• The unsupervised conference timer extension code number, and the extension time digit
(1-9) must be entered using Admin Programming.
• Once that information is entered, the system will re-assign the unsupervised conference
timer to equal the multiple of the entered digits (EX - if the unsupervised conference timer
is set to 10 mins, and the multiple digit is 3, then the timer will be extended to 30 mins).
CO - CO Unsupervised Conference Timer Extend -- if value is
set to ON, the conference call user can extend the Unsupervised
Conference Timer by dialing the UC Timer Extend Code.
PGM 160 + FLEX 18 +
0 (Off) + [HOLD/SAVE]
VALUES --
0 = Off
1 = On
Unsupervised Conf Timr Extend Code -- if value is
set to ON, the conference member can extend the
Unsupervised Conference Time by dialing the
Uunsupervised Conference TIMER EXTEND Code.
PGM 109 + FLEX 6
VALUES --
Set 1, 2, 6, 7, and 8 = ##
Set 3, 4, and 5 = *##
Release 3.5
June 2010