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Indoor Coin Payphone


The T506 is an indoor payphone with PSTN access, supporting coin payment.


The T506 is an indoor payphone with PSTN access, supporting coin payment. With an exquisite appearance and high performance, it is applicable to indoor areas such as hotels, airports, schools and restaurants.
In addition, the multi-function Payphone Management System (PMS) realizes remote monitoring and maintenance of payphones, reducing operation cost.


  • Make calls using coins
  • Dial preset toll-free emergency numbers
  • Function keys for successive call, redial, volume regulation and language selection
  • Real-time display of conversation duration and charge
  • Convenient operation with rich prompt tones and textual messages
  • 6-language switching display
  • For incoming calls, enable/disable billing, limit conversation duration and prohibit calls
  • Dot-matrix LCD for rolling display of textual and graphic advertisements
  • Self-diagnosis and fault prompt
  • Configurable call rate
  • Support auto-switching of backup call rate


  • Low-consumption design, no external power required
  • Modular design and appropriate layout for convenient maintenance
  • Desktop or wall mounted
  • Support optimized coin acceptance for user’s interests
  • Learn new coins without change in hardware or software
  • Recognize up to 15 denominations
  • Support update of software and parameters via PMS or loading card


  • Configure control parameters; download rate, prompt messages, advertisements and programs
  • Receive CDR (call detail record), coin box data, fault alarms and restoration messages
  • Enquire service reports (CDR, business income, fault rate, payphone quantity and operation parameters)
  • Monitor payphone operation




128X64 dot-matrix, 4-row backlit display


Identification capacity

15 denominations

Coin tray capacity

5 pcs

Coin size

Diameter: 16 mm~31 mm

Thickness: 1.2 mm~3.2 mm

Coin box capacity

1L (300 pcs~500 pcs)

Power supply

Power supply mode

By telephone line

Operating current

≥18 mA

Electrical indexes

Transmission characteristics

Sending Loudness Rating (SLR): 5 dB~15 dB

Receiving Loudness Rating (RLR): -7 dB~2 dB

Side Tone Masking Rating (STMR): ≥7 dB

DTMF level

HF group: -7 dBm±3 dBm

LF group: -9 dBm±3 dBm

Ring characteristics

Trigger sensitivity: ≤100 mVA

Frequency: 16 Hz~68 Hz

Voltage: 30 VPMS~120 VPMS

Sound level: >70 dB(A)

Billing signals

Antipodal/ 12kHz (or 16kHz)/ manual billing

Operating environment






Casing material


Tensile strength of handset cord

≥120 kg

Hook switch lifespan

>200,000 operations

Key lifespan

>500,000 operations

Phone dimension

(L x W x H)

270 mmx200 mmx350 mm

Package dimension

(L x W x H)

320 mmx240 mmx420 mm

Net weight

3.5 kg

Gross weight

4 kg