17.16. CTLS - Controlled trunk and line selection network-wide 
Feature:
Function:
The COT parameter CTLS enables the controlled selection of trunks and lines for
network-wide connections. If the CTLS DAR with the selected call number determined
in the
DPLN leads to a trunk, this is only seized and the call number is only sent if the
COT
parameter CTLS is set for the relevant trunk group.
It is only possible to continue dialing after a trunk has been seized if the COT parameters
CTLN (prevent controlled line and trunk selection in an external system) or SPCM (speech
channel compressed) are not set in the breakout trunk for the OpenScape 4000/HiPath
4000
network.
AMO Interrelationships:
COT: <CLTN, SPCM>; COS <CTLS>; CTIME: <CTLS1, CTLS2
>, DPLN: <CTLS>;
Device types:
Analog line trunks, DIU-CAS line trunks and digital CO trunk circuits or tie trunk
circuits
Network protocols:
For example, ECMAV2 (CorNet-NQ Issue 2.1 Dec.96 Basic ETSI), PSS1V2 (CorNet-NQ Issue
2.1
Dec.96 Basic ISO/IEC)
EDSGER (EDSS1 protocol for Germany), EDSAUT (EDSS1 protocol for Austria), EDSSUI (EDSS1
protocol for Switzerland), EDSFRA (EDSS1 protocol for France), ETSI (Standard EURO-ISDN)