TSP Edge User’s Manual
40-400-00065, Rev. E
145
E1 ITU Q.421 - Call Originate
0
Seizure from Edge.
Wait for Seize Acknowledge
timer starts.
1
Seize acknowledge received from equipment under test.
Delay before Dialing
timer starts.
Note: If
Wait for Seize Acknowledge
timer expires before acknowledge
received from equipment under test, the Edge will release the seizure and
proceed to step 7.
2
Delay before Dial
timer expires.
Edge starts dialing
1
the Transmit Digits assigned to channel
3
Dialing ends.
Wait For Answer
timer starts.
4
Edge detects answer from equipment under test.
Call Duration
timer starts.
Delay Before Message
2
timer starts.
Note: If
Wait for Answer
timer expires before the Edge detects answer from
equipment under test, the Edge will proceed to step 7.
5
Delay Before Message
timer expires.
Edge starts playing audio message.
6
Edge detects on-hook from equipment under test.
Far-end Disconnect
timer starts.
Note: If
Call Duration
timer expires before detecting on-hook from the
equipment under test, the Edge will send 850ms COD.
7
Far-end disconnect
timer expires.
Disconnect to start of new call
timer starts.
Note: If equipment under test goes back off-hook before the
Far-End
Disconnect
timer expires, the Edge goes back to looking for step 6.
8
Disconnect to start of new call
timer expires.
Edge ready to receive next call.
1
DTMF dialing uses the DTMF Transmit Length timing for both the on and off times.
2
If no Audio Message is programmed for the channel, proceed directly to step 6.
Call Setup
Call Connected
Call Disconnect
Delay Before
Dial
Wait For
Seize
Acknowledge
Wait For
Answer
Delay Before
Message
TSP Plays
Audio
Message
Disconnect
To Start Of
New Call
TSP Dials
Far-End Disconnect
guard time -
Calling Party Control
0
1
2
3
4
5
6
7
8