Category:Telephony signals

• Signaling (telecommunications) (engineering)

A

• Analog Display Services Interface (engineering)
• Automatic number announcement circuit (engineering)
• Automatic number identification (engineering)

B

• Bearer channel (engineering)
• Busy signal (engineering)

C

• Call progress analysis (engineering)
• Call-progress tone (engineering)
• Camp-on busy signal (engineering)
• CCIR (selcall) (physics)
• Common-channel signaling (engineering)
• Common-network interface ring (engineering)
• Compelled signalling (engineering)

D

• Dial tone (engineering)
• Differential pulse-code modulation (engineering)
• Digital milliwatt (engineering)
• Digital Private Network Signalling System (computing)
• Disconnect tone (engineering)
• Dual-tone multi-frequency signaling (engineering)

E

• E and M signaling (engineering)
• Edge STP (engineering)
• Extended superframe (computing)

F

• Falsing (computing)
• Foreign exchange service (telecommunications) (engineering)

G

• Ground start (engineering)
• Guard tone (engineering)

H

• Hook flash (engineering)

I

• In-band signaling (computing)

L

• Line signaling (engineering)
• Loop start (engineering)

M

• Metering pulse (engineering)
• Multi-frequency receiver (engineering)
• Multi-frequency signaling (engineering)
• Multiple frequency-shift keying (engineering)

O

• Off-hook tone (engineering)
• On- and off-hook (engineering)
• On- and Off-hook (engineering)
• On-hook (engineering)
• One-way trunk (engineering)

P

• Panel call indicator (engineering)
• Permanent signal (engineering)
• Precise tone plan (engineering)
• Precise Tone Plan (engineering)
• Proceed-to-select (engineering)
• Pulse dialing (engineering)
• Pulse-code modulation (computing)

R

• R2 signalling (engineering)
• Recorder warning tone (engineering)
• Register signaling (engineering)
• Reorder tone (engineering)
• Ringing (telephony) (engineering)
• Ringing tone (engineering)
• Ringtone (engineering)
• Robbed-bit signaling (engineering)
• Rotary dial (engineering)

S

• Sender (engineering)
• Separate-channel signaling (engineering)
• Signal tone (engineering)
• Signaling protocol (computing)
• Signaling System No. 5 (engineering)
• Signaling System No. 6 (engineering)
• Signalling System No. 7 (computing)
• Simplex signaling (engineering)
• Single-frequency signaling (engineering)
• Special information tone (engineering)
• SS7 probe (engineering)
• Status tones (engineering)
• Superframe (computing)
• Supervision (telephony) (engineering)

T

• Telephone hook (engineering)
• Telephone signaling interface (engineering)
• Template:Telsigs
• ToneScript (engineering)
• Truetone (engineering)
• Two-out-of-five code (computing)

V

• Voice interface card (engineering)

W

• Wink pulsing (engineering)

Z

• Zip tone (engineering)