
MultiModem ISI Hybrid Series, ISIHI-2S/2U 95
Chapter 5—TERMINAL ADAPTER AT Commands, S-Registers, Result Codes
!C0=n Network Switch Type
Values:n = 0, 1, 2, or 5
Default: !C0=2 (InternationalNET3)
!C0=5 (USAUS N1-1)
Selects one of the network switch types supported by the ISIHI-2S/2U. International
factory default setting is !C0=1 (Northern Telecom DMS-100). Default for USA is !C0=5
(USAUS N1-1).
!C0=0 AT&T 5ESS
!C0=1 Northern Telecom DMS-100
!C0=2 NET3 (Euro ISDN)
!C0=5 US NI-1
!C6=n SPID 0
Values: n = 020-character string
Default: null string
Specifies the channel 0 service profile identifier (SPID) that the ISDN service provider
assigned at subscription time. The data SPID string can have up to 20 characters.
Note: For DMS-100 switches, any ASCII character except the underline (_) character is
valid. For NI-1 and AT&T switches, only the digits 09 are valid. (Not needed for NET3
switch type.)
*!C6=n SPID 1
Values:n = 0- to 20-character string
Default: null string
Specifies the channel 1 service profile identifier (SPID) that the ISDN service provider
assigned at subscription time. The voice SPID string can have up to 20 characters.
Note: For DMS-100 switches, any ASCII character except the underline (_) character is
valid. For NI-1 and AT&T switches, only the digits 09 are valid. (Not needed for NET3
switch type.
!D3=n TEI 0
Values:n = 063, 240 (auto), 241 (disable)
Default: !D3=240 (Auto TEI)
Sets the terminal endpoint identifier (TEI) for channel 0. A TEI is a number used by the
central office switch to identify uniquely each device that is connected to the network.
When it uses dynamic TEI assignments (auto TEI), the central office switch assigns a TEI
each time the TA connects to the network. If your ISDN service provider assigned a fixed
TEI at subscription time, you must configure the TA with the fixed TEI number.
You can also use !D3= to disable the data channel, which may be useful when multiple
TAs are attached to a network terminator bus.
!D3=063 Sets the TEI to a fixed value from 0 through 63
!D3=240 Sets the data channel for dynamic TEI negotiation (factory default)
!D3=241 Disables TEI
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