AT&T 2500 series Network Router User Manual


 
C-30 TRUNKING TERMS AND CAPABILITIES
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SWITCH A
FOR EACH "SWITCH A" TRUNKING OPTION (LISTED BELOW) — REFER TO THE
CORRESPONDING RECOMMENDED "SWITCH B" TRUNK OPTIONS (RIGHT FACING PAGE).
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GROUP/CALL TYPE DIREC- SUPERVISION SIGNALING
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TION
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GENERIC 2, GS LS RB E&M ISDN INCOMING OUTGOING TIMEOUT
SYSTEM 85, OR
DIMENSION PBX "ALERTING" "ADDRESSING" (NOTE 3)
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101/DATA 2W 27 IMMED-START IMMED-START
ANALOG DATA
MODEM SIDE
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102/DATA 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
DIGITAL DATA
DATA MODULE SIDE
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103/HOST ACCESS 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
LINE SIDE
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104/HOST ACCESS 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
TRUNK SIDE
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105/3B5 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
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106/EIA 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
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107/ISN/EIA 2W 18 DCP S-CHANNEL DCP S-CHANNEL (Note 16)
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108/DMI 2W D-5 WINK-START IMMED-START
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20 DMI-MOS DMI-MOS (Note 5)
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109/DMI 2W D-11 WINK-START WINK-START OR (Note 13)
DELAY-DIAL
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20 DMI-MOS DMI-MOS (Note 4)
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120/ISDN DYNAMIC 2W 20 (Note 17) (Note 17)
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Notes:
16. Requires signaling type 18.
17. The type of signaling being used depends upon the particular trunk type and service being provided for a particular call. Each
call and each channel may require a different signaling method than the previous call, depending upon the different types of calls
and call volume.