CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
[QSIGTunnelingMode] Defines the format of encapsulated QSIG message data in the
SIP message MIME body.
â– [0] = (Default) ASCII presentation of Q.931 QSIG message.
â– [1] = Binary encoding of Q.931 QSIG message (according to
ECMA-355, RFC 3204, and RFC 2025).
Note: The parameter is applicable only if the QSIG Tunneling
feature is enabled (using the EnableQSIGTunneling parameter).
'Enable Hold to ISDN'
configure voip >
gateway dtmf-supp-
service supp-
service-settings >
hold-to-isdn
[EnableHold2ISDN]
Enables SIP-to-ISDN interworking of the Hold/Retrieve
supplementary service.
â– [0] Disable (default)
â– [1] Enable
Note:
â– The parameter is applicable to Euro ISDN variants - from TE
(user) to NT (network).
â– The parameter is applicable to QSIG BRI.
â– If the parameter is disabled, the device plays a held tone to
the Tel side when a SIP request with 0.0.0.0 or "inactive" in
SDP is received. An appropriate CPT file with the held tone
should be used.
'ISDN SubAddress Format'
isdn-subaddr-frmt
[ISDNSubAddressFormat]
Determines the encoding format of the SIP Tel URI parameter
'isub', which carries the encoding type of ISDN subaddresses.
This is used to identify different remote ISDN entities under the
same phone number (ISDN Calling and Called numbers) for
interworking between ISDN and SIP networks.
â– [0] ASCII = (Default) IA5 format that allows up to 20 digits.
Indicates that the 'isub' parameter value needs to be
encoded using ASCII characters.
â– [1] BCD = (Binary Coded Decimal) - allows up to 40
characters (digits and letters). Indicates that the 'isub'
parameter value needs to be encoded using BCD when
translated to an ISDN message.
â– [2] User Specified
For IP-to-Tel calls, if the incoming SIP INVITE message
includes subaddress values in the 'isub' parameter for the
Called Number (in the Request-URI) and/or the Calling Number
(in the From header), these values are mapped to the outgoing
ISDN Setup message.
If the incoming ISDN Setup message includes 'subaddress'
values for the Called Number and/or the Calling Number, these
values are mapped to the outgoing SIP INVITE message's
‘isub’ parameter in accordance with RFC 4715.
configure voip >
gateway dtmf-supp-
service supp-
service-settings >
ignore-isdn-
subaddress
Determines whether the device ignores the Subaddress from
the incoming ISDN Called and Calling numbers when sending to
IP.
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