AudioCodes Mediant 2000 User Manual

Version 6.6 351 Mediant 2000
User's Manual 26. Configuring Supplementary Services
NI Digits in ISDN Precedence
Level IE Network Domain in SIP Resource-Priority Header
0000 uc
0001 cuc
0002 dod
0003 nato
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 PRI Precedence Level SIP Resource-Priority Header
Field
Routine 4 0
Priority 3 2
Immediate 2 4
Flash 1 6
Flash Override 0 8

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

AudioCodes Mediant 2000 Specifications

General

Brand	AudioCodes
Model	Mediant 2000
Category	Gateway
Language	English