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C H A P T E R
3 :
S E T U P
O F
T H E
E 1 / T 1
B O A R D
P A R A M E T E R S
– Common T1 robbed bit protocols including E&M wink start, E&M
T1 CAS
immediate start, E&M delay dial/start, loop start and ground start. You may
change the protocol parameters and the state machine by editing the
protocol textual table. For a description of how to edit a CAS protocol table,
please refer to Section 7.1.
- National ISDN-2 PRI protocol with many ISDN information
T1 NI2 ISDN
elements and call control messages.
- ISDN PRI protocol for the Lucent®/AT&T® 4ESS switch with
T1 4ESS ISDN
many ISDN information elements and call control messages.
T1 5ESS-9 ISDN
- ISDN PRI protocol for the Lucent®/AT&T® 5ESS-9 switch
with many ISDN information elements and call control messages.
- ISDN PRI protocol for the Lucent®/AT&T® 5ESS-10
T1 5ESS-10 ISDN
switch with many ISDN information elements and call control messages.
- ISDN PRI protocol for the Nortel® DMS100 switch with
T1 DMS100 ISDN
many ISDN information elements and call control messages.
In addition to these protocol types, the E1/T1 Option for OPERA™ offers a
number of transparent protocols. Transparent protocols provide the physical
interface layer, without any signalling-related functions. These protocol types
are listed below.
– Transparent protocol, where no signalling is to be
E1 Transparent-62
provided by the E1/T1 interface board. Time slots 1-31 of each trunk are
mapped to the DSP channels hosted on the board. The first trunk is fully
mapped, i.e. all 31 time slots, while the last trunk and its last time slots (30
and 31) will not have any DSP channel.
- Transparent protocol, where no signalling is to be
E1 Transparent-60
provided by the E1/T1 interface board. Time slots 1-31, excluding time slot
16 of both trunks, are mapped to 60 DSP channels on the board.
- Transparent protocol, where no signalling is to be
T1 TRANSPARENT
provided by the E1/T1 board. Time slots 1-24 of both trunks are mapped to
60 DSP channels.
- Transparent protocol, where no signalling is to be
J1 TRANSPARENT
provided by the E1/T1 board. [AUDI01]
3.1.2 Call Progress Tones
The call progress tones to be detected, or generated by the board,
respectively, are defined in a Call Progress Tones Configuration File. You
can either use one of the files supplied by OPTICOM, or construct your own
file. A description of how to edit a Call Progress Tones Configuration File
can be found in Section 7.1.
6
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