SpitFire Help Desk

Model Number

D240SC-T1, D/240PCI-T1

Framing Type

D4 Super frame (not extended SuperFrame)

Interface

DSX-1

T-1 Signaling

Robbed bit

Supervisory Signal

2- or 4- wire E&M

Timing

Loop timing

Internal Clock Stratum Level

Stratum 4

T-Span support

Full (24 timeslots)

Voice coding

PCM

Channel order

1-24

Wink

Wink and double wink

Other equipment

CSU - required in most cases when connecting to public

T-1 network.

DSU - usually not required

CSU-to-D240SC-T1 Cable must be provided by customer

Line coding/Framing

AMI/Super frame

Digit Signaling

DTMF or MF

ANI/DNIS (DID)

Application needs to know the following:

• Digit signaling - DTMF or MF
• What signal to send to the CO to indicate we're ready to receive the digit string - usually wink.
• The format of the incoming ANI/DID string

Signaling Protocol

Application needs to know signaling for the following:

• Incoming call
• Line drop
• Inbound pickup (accept call)
• Outbound pickup (seize line to make call)
• Hang-up

Wink Definition

Get both Transmit and Receive Wink definitions from your T-1 provider