Call routing
199
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
6. 4. 3. 1 Routing the call
[1] One and the same trunk group cannot contain both analogue and digital network interfaces.
Fig. 93 Routing a call to the public network
Tab. 37 Setting the routing parameters
Parameter Parameter value
User configuration BN 220:
• Route 1 (route reference number)
• External digit barring One digit barring each for switching position 1, 2 and 3
Route 1:
• Trunk group 1 (reference number of one or more trunk group(s))
• Max outgoing calls Number of calls going out simultaneously via this route
• External digit barring activated (poll digit barring)
• Numbering plan identifier (NPI) E.164
Trunk group 1:
• Network interfaces Network interfaces of this trunk group
• Network type Public
1)
1)
Not relevant for trunk groups with analogue network interfaces
• Protocol DSS1
1)
[1]
220
1/n
3/n
220
333 33 33
0 333 33 33
PINX 1
PINX 1
PINX 2
BRI-T
PRI
FXO
BRI-T
PRI
Network
interfaces
PISN
Call Distribution Element 3
PISN user 330
User conguration
Call Distribution Element 1
User conguration
Route 1
Route 2
Trunk group 2 (PSS1)
Trunk group 1 (DSS1)
Ex-
change
KT line
User
S
extern
User 220
<- call no.
<- Network interfaces
<- Trunk group 2
<- Network interfaces
<- Trunk group 1
<- Route 1
<- KT route 1
<- route 2
<- KT route 2