SIP User's Manual 186 Document #: LTRT-68806
Mediant 2000 & TP-1610 & TP-260/UNI
Table 5-37: E1/T1/J1 Configuration Parameters
ini File Field Name
Web Parameter Name
Valid Range and Description
ISDN Transfer Capabilities
[ISDNTransferCapability_
ID]
Defines the IP-to-ISDN Transfer Capability of the Bearer Capability IE in
ISDN Setup messages. ID is the Trunk number.
 [0] Audio 3.1 = Audio (default).
 [1] Speech = Speech.
 [2] Data = Data.
 Audio 7 = Currently not supported.
 [-1] Not Configured
Note: If this parameter isn't configured or equals to '-1', Audio 3.1
capability is used.
ISDN Flexible Behavior Parameters
ISDN protocol is implemented in different Switches / PBXs by different vendors. Several
implementations vary a little from the specification. Therefore, to provide a flexible interface that
supports these ISDN variants, the ISDN behavior parameters are used.
Q.931 Layer Response
Behavior
[ISDNIBehavior]
Bit-field used to determine several behavior options that influence the
behaviour of the Q.931 protocol. To select the options, click the arrow
button, and then for each required option, select 1 to enable. The default
is 0 (i.e., disable).
 [1] NO STATUS ON UNKNOWN IE = Q.931 Status message isn't
sent if Q.931 received message contains an unknown/unrecognized
IE(s). By default, the Status message is sent. This parameter applies
only to PRI variants in which sending of Status message is optional.
 [2] NO STATUS ON INV OP IE = Q.931 Status message isn't sent if
an optional IE with invalid content is received. By default, the Status
message is sent. This parameter applies only to PRI variants in which
sending of Status message is optional.
 [4] ACCEPT UNKNOWN FAC IE = Accepts unknown/unrecognized
Facility IE. Otherwise, the Q.931 message that contains the unknown
Facility IE is rejected (default). This parameter applies to PRI variants
where a complete ASN1 decoding is performed on Facility IE.
 [128] SEND USER CONNECT ACK = Connect ACK message is sent
in response to received Q.931 Connect. Applicable only to Euro ISDN
User side outgoing calls. Otherwise, the Connect ACK is not sent
(default).
 [512] EXPLICIT INTERFACE ID = Enables to configure T1 NFAS
Interface ID (refer to the parameter ISDNNFASInterfaceID_x).
Applicable to 4/5ESS, DMS, NI-2 and HKT variants.
 [2048] ALWAYS EXPLICIT = Always set the Channel Identification IE
to explicit Interface ID, even if the B-channel is on the same trunk as
the D-channel. Applicable to 4/5ESS, DMS and NI-2 variants.
 [32768] ACCEPT MU LAW =Mu-Law is also accepted in ETSI.
 [65536] EXPLICIT PRES SCREENING = The calling party number
(octet 3a) is always present even when presentation and screening
are at their default. Applicable to ETSI, NI-2 and 5ESS.
 [131072] STATUS INCOMPATIBLE STATE = Clears the call on
receipt of Q.931 Status with incompatible state. Otherwise, no action
is taken (default).
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