VS1 Installation, Configuration & Operating Guide 253
06 MF tone 6 active
07 MF tone 7 active
08 MF tone 8 active
09 MF tone 9 active
0A
MF tone KP (Key
Pulse) active
0B
MF tone ST (Start)
active
0C MF tone STP active
0D MF tone ST2P active
0E MF tone ST3P active
10 MF tones inactive
The fourth row—CP (Call Progress)—switches between one of six states for each channel.
The CP state is listed in a two-digit code. The following list contains CP codes and their definitions.
CP Code Definition
01 Silence
02 Busy
03 Ring
04 Dial Tone
05 Unknown (Voice)
06 Loud
The fifth row—RSig (Received Signal) and the last row—XSig (Transmitted Signal)—are based on
the signaling used on that channel.
A = Signal bit A is inactive
A = Signal bit A is active
B = Signal bit B is inactive
B = Signal bit B is active
X = Signal bit B can be active or inactive, the normal signal value is shown in parenthesis
Rsig (Received Signal)
State E&M Loop Start Ground Start
Idle ax(ab) aB Ax(AB)
OffHook AB aB
Wink AB
Ringing ab ab
Xsig (Transmitted Signal)
State E&M Loop Start Ground Start
Idle ab aB aB
OffHook AB AB AB
Wink AB
Ringing
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