User's Manual 67. Configuration Parameters Reference
Version 6.8 953 Mediant 500L MSBR
Parameter Description
The valid value range is 0 to 36. The default is 0.
This feature operates as follows:
1 If an isub parameter is received in the Request-URI, for
example,
INVITE sip:9565645;isub=1234@host.domain:user=phone
SIP/2.0
then the isub value is sent in the ISDN Setup message as the
destination subaddress.
2 If the isub parameter is not received in the user part of the
Request-URI, the device searches for it in the URI parameters
of the To header, for example,
To: "Alex" <sip: 9565645@host.domain;isub=1234>
If present, the isub value is sent in the ISDN Setup message as
the destination subaddress.
3 If the isub parameter is not present in the Request-URI header
nor To header, the device does the following:
If the called number (that appears in the user part of the
Request-URI) starts with zero (0), for example,
INVITE sip:05694564@host.domain:user=phone SIP/2.0
then the device maps this called number to the destination
number of the ISDN Setup message, and the destination
subaddress in this ISDN Setup message remains empty.
If the called number (that appears in the user part of the
Request-URI) does not start with zero, for example,
INVITE sip:5694564@host.domain:user=phone SIP/2.0
then the device maps this called number to the destination
number of the ISDN Setup message, and the destination
subaddress in this ISDN Setup message then contains y
digits from the end of the called number. The y number of
digits can be configured using the ISUBNumberOfDigits
parameter. The default value of ISUBNumberOfDigits is 0,
thus, if this parameter is not configured, and 1) and 2)
scenarios (described above) have not provided an isub
value, the subaddress remains empty.
Web: Default Cause Mapping
From ISDN to SIP
CLI: dflt-cse-map-isdn2sip
[DefaultCauseMapISDN2IP]
Defines a single default ISDN release cause that is used (in ISDN-
to-IP calls) instead of all received release causes, except when the
following Q.931 cause values are received: Normal Call Clearing
(16), User Busy (17), No User Responding (18), or No Answer from
User (19).
The range is any valid Q.931 release cause (0 to 127). The default
is 0 (i.e., not configured - static mapping is used).
CLI: usr2usr-hdr-frmt
[UserToUserHeaderFormat]
Defines the interworking between the SIP INVITE's User-to-User
header and the ISDN User-to-User (UU) IE data.
[0] = (Default) SIP header format: X-UserToUser.
[1] = SIP header format: User-to-User with Protocol
Discriminator (pd) attribute (according to IETF Internet-Draft
draft-johnston-sipping-cc-uui-04). For example:
User-to-
User=3030373435313734313635353b313233343b3834;pd
=4
[2] = SIP header format: User-to-User with encoding=hex at the
end and pd embedded as the first byte (according to IETF
Internet-Draft draft-johnston-sipping-cc-uui-03). For example:
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