IP Network Connections
140
PBX Networking
by the other station via the SIP tie line protocol. This makes it possible to auto-
matically adapt to the respective other station.
You can use SIP tie line connections between Forum communications
systems. With SIP tie line connections to other manufacturers systems only
basic call features may be used
Note:
ForumTwo licences are required when networking two Forum
systems via SIP-Tie-Line – a licence for each end point. The
number of possible call connections is not restricted by the
licence.
Open the
Telephony
:
Trunks
:
Trunk group
page in the
Configurator
to
configure a connection via SIP tie line. Create a new bundle and select
Access
Type
“System access”. Select “SIP Tie-Line” under
Protocol
. Configure the IP
address of the other system, the port number to be used (the same port
number at both end points), the number of possible call connections. Select a
VoIP profile for codec selection. Please note the corresponding help topics in
the online help Forum 523/524.
En-bloc dialling only is supported with a SIP tie line as with other SIP connec-
tions. To establish a call connection you have to first end call number entry
with the hash key or wait a certain length of time. This length of time can be
defined in the
Time to ready dial out
input field when configuring the SIP
tie line (3-5 seconds are usual). In addition, you can activate a cache for accel-
erated dial out conclusion for the call numbers most recently dialled with the
Dial out cache
option.
Note:
A SIP tie line cannot be conducted via a NAT connection. A
branch connection or another VPN connection is necessary for a
connection via SIP tie line.
Summary of Contents for forum 523
Page 1: ...Forum 523 524 Mounting and Commissioning Manual ...
Page 10: ...8 ...