Dialogic 6.2 - Manual (Page 202)

Transferring Calls Using Release Link Trunk Transfer
November 2009 202
Transferring Calls Using Release Link Trunk Transfer
Release Link Trunk is an explicit call transfer method for Nortel
DMS-250 switches and is only available for Nortel switches.
The host application initiates the Release Link Trunk (RLT) action,
but the call transfer is completed within the public switch network.
Calls come into the network on two B-channels. Each channel
maintains its call and both channels are busy. When the call
finishes, the B-channels are torn down.
Using Bfv Applications
Set Release Link Trunk in your Bfv application using the
BfvLineTransfer argument:
args.lp_second_Channel
A zero (0) value transfers calls over a single channel, such as an
analog line.
To configure using the
Brooktrout Configuration Tool
(Windows® only):
„ Set each port’s
Protocol Options
to
T1 ISDN
.
„ Set the
Protocol
to
Northern Telecom NIS A211-1
.
„ Set the
Switch Type
to
Northern Telecom DMS-250
.
„ Set the
Transfer Variant
to
Release Link Trunk (DMS-100 or
DMS-250)
.
„ Set the
country_code
in
BTCall Parameters
to
0010 (US)
.
Country codes are listed in:
C:\Brooktrout\Boston\bfv.api\inc\ccode.h
Note: You must be in
Advanced Mode
in the
Brooktrout Configuration
Tool
to configure
BTCall Parameters
.
To configure using configuration files:
„ Set the port configuration using the callctrl.cfg configuration file:
port_config=t1_isdn
„ Set the protocol using the callctrl.cfg configuration file:
protocol=nortel