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Mediant 2000 SIP User's Manual
Use the number manipulation table (exemplified below) to assign NPI/TON values according
2.
to the number's prefix:
NumberMapIP2TEL= nortelnetworks.com/TrunkGroup3,30,$$,$$,1,2
In the above example, all numbers starting with the 'nortelnetworks.com/TrunkGroup3'
string, are modified; the first 30 characters in this prefix string (domain and trunk group
names) are erased, and the NPI/TON are set to 1/2 respectively.
Note:
8.13.1.4 Transfer
To differentiate transferred calls (using the REFER method) from incoming ISDN calls, add the
following parameter to the ini file: xferPrefix = $; the parameter adds the '$' sign (or any other
string) as a prefix to the transferred called number. The added string can be later removed using
the number manipulation rule.
Note:
8.13.1.5 Other Nortel Specific Parameters
If the parameter 'EarlyAnswerTimeout' > 0 and Q.931 CONNECT was not received from ISDN for
'EarlyAnswerTimeout', the Mediant 2000 responds with 200 OK.
Asserted-Identity header is ignored, if received by Mediant 2000 gateway in INVITE message and
if 'ApplicationProfile = 4444'.
Mediant 2000 gateway doesn't include the Called Number Remoty-Party-ID header in INVITE (for
ISDN IP calls) if 'ApplicationProfile = 4444'.
Version 4.4
The $$ signs represent the empty parameters 'Prefix to add' and 'Number of
digits to leave'.
When using the PRI2SIP gateway, the NumberMapTel2IP = *, 1 manipulation
rule is used. This manipulation rule also applies to transferred calls,
corrupting the number by removing its first digit. Therefore, use the xferPrefix
= $ parameter to prepend a single character to the transferred number so that
the manipulation table only removes the added character without altering the
original number.
161
8. Gateway Capabilities Description
July 2005
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