BroadSoft SIP Trunk
Quick Guide 28 Document #: LTRT-14020
Figure 5-15: Example of Configured SIP Message Manipulation Rules
The table displayed below includes SIP message manipulation rules which are grouped together
under Manipulation Set ID 1 and which are executed for messages sent to the BroadSoft SIP Trunk.
These rules are specifically required to enable proper interworking between BroadSoft SIP Trunk and
PBX. Refer to the User’s Manual for further details concerning the full capabilities of header
manipulation.
Rule
Index
Rule Description Reason for Introducing Rule
0
This rule applies to response messages sent to the
BroadSoft SIP Trunk for Rejected Calls initiated by the
PBX. This replaces the ‘503’ and ‘603’ method types
with the value ‘486’.
The BroadSoft SIP Trunk not
recognizes these method types
and continue to try to setup call to
the PBX.
1
This rule applies to messages sent to the BroadSoft SIP
Trunk in a call forward scenario. This add prefix to the
user part of SIP Diversion Header to complete to the full
number.
If the PBX is configured with
endpoints in 4-digits format in the
Call Forward scenario, SIP
Diversion Header will present a 4-
digit number, that will cause a
problem in the Forward Call
setup.
2
This rule applies to messages sent to the BroadSoft SIP
Trunk in a call transfer scenario. This
the user part of SIP Refer-To Header.
For complete the BroadSoft SIP
Trunk number conversion.
3
This rule applies to messages sent to the BroadSoft SIP
Trunk in a call forward scenario. This replaces the user
part of the SIP From Header with the value from the SIP
Diversion Header.
For Call Forward scenarios,
BroadSoft SIP Trunk needs that
User part in SIP From Header will
be defined number. In order to do
this, User part of the SIP From
Header replaced with the value
from the SIP Diversion Header.
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