AudioCodes Mediant 500L MSBR

User's Manual 26. Manipulation
Version 6.8 397 Mediant 500L MSBR
Parameter Description
CLI: npi
[PhoneContext_Npi]

[0] Unknown (default)
 [1] E.164 Public
 [9] Private
For a detailed list of the available NPI/TON values, see Numbering
Plans and Type of Number on page 403.
TON
CLI: ton
[PhoneContext_Ton]
Defines the Type of Number (TON).
 If you selected Unknown as the NPI, you can select Unknown [0].
 If you selected Private as the NPI, you can select one of the
following:

[0] Unknown

[1] Level 2 Regional

[2] Level 1 Regional

[3] PSTN Specific

[4] Level 0 Regional (Local)
 If you selected E.164 Public as the NPI, you can select one of the
following:

[0] Unknown

[1] International

[2] National

[3] Network Specific

[4] Subscriber
 [6] Abbreviated
Phone Context
CLI: context
[PhoneContext_Context]
Defines the SIP 'phone-context' URI parameter.
26.8 Configuring Release Cause Mapping
The release cause mapping tables let you configure rules to map up to 12 different ISDN
ITU-T Q.850 release cause codes (call failure) to SIP response codes, and vice versa.
These tables allow you to override the default ISDN-SIP release cause mappings,
described in ''Fixed Mapping of ISDN Release Reason to SIP Response'' on page 400 and
''Fixed Mapping of SIP Response to ISDN Release Reason'' on page 399.
The release cause mapping tables include:

Release Cause Mapping from SIP to ISDN table: Maps SIP release codes to ISDN
cause codes. When a SIP response is received from the IP side, the device searches
this table for a match. If the SIP response is found, the Q.850 Release Cause
assigned to it is sent to the PSTN. If no match is found, the default static mapping is
used.

Release Cause Mapping from ISDN to SIP table: Maps ISDN cause codes to SIP
release codes. When a Release Cause is received from the PSTN, the device
searches this table for a match. If the Q.850 Release Cause is found, the SIP
response assigned to it is sent to the IP side. If no match is found, the default static
mapping is used.
Note: For Tel-to-IP calls, you can also map the less commonly used SIP responses to
a single default ISDN Re
lease Cause, using the DefaultCauseMapISDN2IP
parameter. This parameter defines a default ISDN Cause that is always used except
when the following Release Causes are received: Normal Call Clearing (16), User
Busy (17), No User Responding (18) or No Answer from User (19).