CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'Default Cause Mapping
From ISDN to SIP'
dflt-cse-map-
isdn2sip
[DefaultCauseMapISDN2I
P]
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).
'Enable Calling Party
Category'
ni2-cpc
[EnableCallingPartyCatego
ry]
Enables the mapping of the calling party category (CPC)
between the incoming PSTN message and outgoing SIP
message, and vice versa (i.e., for IP-to-Tel and Tel-to-IP calls).
The CPC characterizes the station used to originate a call (e.g.,
a payphone or an operator).
â– [0] Disable = (Default) CPC is not relayed between SIP and
PSTN.
â– [1] Enable
The CPC is denoted in the PSTN message as follows:
â– ISDN PRI NI-2: In the Originating Line Information (OLI)
Information Element (IE) of the ISDN Setup message.
â– MFC-R2: ANI II digits. The device supports the Brazilian
and Argentinian variants. This regional support is configured
using the CallingPartyCategoryMode.
The CPC is denoted in the SIP INVITE message using the
'cpc=' parameter in the From or P-Asserted-Identity headers.
For example, the 'cpc=' parameter in the below INVITE
message is set to "payphone":
INVITE sip:bob@biloxi.example.com SIP/2.0
To: "Bob" <sip:bob@biloxi.example.com>
From:
<tel:+17005554141;cpc=payphone>;tag=192830177
4
The table below shows the mapping of CPC between SIP and
PSTN:
SIP CPC NI-2
PRI
MFC-R2
Argentina Brazil
ordinary 23 II-1 II-1
priority n/a II-2 II-2
data n/a II-6 II-6
test n/a II-3 II-3
operator 35 II-5 II-5
payphone 70 II-4 II-7
unknown n/a II-1 II-1
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