AudioCodes Mediant 2000 User Manual page 351

User's Manual
Level IE
0000
0001
0002
0003
Notes:
•
If the received ISDN message contains NI digits that are not listed in the
translation table, the device sets the network-domain to "uc" in the outgoing SIP
message.
•
If the received SIP message contains a network-domain value that is not listed in
the translation table, the device sets the NI digits to "0000" in the outgoing ISDN
message.
•
If the received ISDN message does not contain a Precedence IE, you can
configure the namespace value - dsn (default), dod, drsn, uc, or cuc - in the SIP
Resource-Priority header of the outgoing INVITE message. This is done using the
MLPPDefaultNamespace parameter. You can also configure up to 32 user-
defined namespaces, using the table ini file parameter,
ResourcePriorityNetworkDomains. Once defined, you need to set the
MLPPDefaultNamespace parameter value to the desired table row index.
By default, the device maps the received Resource-Priority field of the SIP Resource-
Priority header to the outgoing ISDN PRI Precedence Level (priority level) field as follows:

If the network-domain field in the Resource-Priority header is "uc", then the device
sets the Precedence Level field in the ISDN PRI Precedence Level IE according to
Table 5.3.2.12-4 (Mapping of RPH r-priority Field to PRI Precedence Level Value):
Mapping of SIP Resource-Priority Header to PRI Precedence Level for MLPP
MLPP Precedence Level
Routine
Priority
Immediate
Flash
Flash Override

If the network-domain field in the Resource-Priority header is any value other than
"uc", then the device sets the Precedence Level field to "0 1 0 0" (i.e., "routine").
This can be modified using the EnableIp2TelInterworkingtable field of the ini file parameter,
ResourcePriorityNetworkDomains.
Notes:
•
If required, you can exclude the "resource-priority" tag from the SIP Require
header in INVITE messages for Tel-to-IP calls when MLPP priority call handling is
Version 6.6
NI Digits in ISDN Precedence
Network Domain in SIP Resource-Priority Header
PRI Precedence Level
4
3
2
1
0
351
26. Configuring Supplementary Services
uc
cuc
dod
nato
SIP Resource-Priority Header
Field
0
2
4
6
8
Mediant 2000