Click Fraud PORTech MT-358 - 8 channel FXO/FXS/GSM Fixed Wireless Terminal
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PORTech MT-358 - 8 channel FXO/FXS/GSM Fixed Wireless Terminal

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04/10/2020 £1,073.00 exc. VAT
1,287.60 inc. VAT
Availability: Usually ships in 1 to 2 weeks
Key Features
  • Auto-select most economic route
  • Polarity Reversing function
  • Set GSM dial-out code amount

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PORTech MT-358 FWT with FXS/FXO/GSM Interfaces

Please Note: This product may have a lead time of up to 1-2 weeks. Please call 0330 088 0195 and speak to our sales team who can confirm the current available stock for your requirement

The PORTech MT-358 is a Fixed Wireless Terminal that supports FXS, FXO and GSM interfaces and can connect to a VoIP system , PSTN or VoIP gateway . The MT-358 supports 8 GSM concurrent channels,  up to 8 calls can be live when 8 SIM cards are inserted.


  • Auto-select most economic route - The MT-358 automatically routes calls out over GSM or PSTN, depending on the destination.
  • 8 Channel - Up to 8 SIM cards allow for eight GSM channels to be active at a time.
  • Polarity Reversing function
  • Set GSM dial-out code amount
  • Limit of communicating time
  • GSM simulated echo-bell function
  • Follow Me - PSTN to GSM and GSM to PSTN

The PORTech MT-358 can connect to your analogue phone line and divert calls to your mobile via its SIM card. Call forwarding rates to mobiles via the PSTN are typically expensive,therefore - when out of the office - calls to the office analogue line would be missed or forwarded to your mobile at considerable cost.

The MT-358 FWT can transfer all incoming calls using its FXO port to GSM and connect calls directly to your mobile using more cost-effective mobile-to-mobile tariffs.

Many mobile operators offer great value deals on same network calls. Thus, if a SIM of the same network as your mobile is used, these inclusive minutes or low call rates can be used when routing calls to your mobile.

The MT-358 also works in reverse - routing incoming GSM calls to a PSTN number using the analogue line.

When a telephone is connected via FXS, calls can also be routed by either GSM or PSTN. The MT-358 can automatically check if the dialed number is on the network and if so, then the call will go out over the lower cost GSM rate; if not the call will go out over PSTN.


  • Phone impendance : Below DC 1kΩ AC 600Ω (not include line)
  • Phone Ring Output Voltage : 45v rms
  • Phone Signal (DTMF) Standard : -3dbm 24dbm
  • Phone Signal (DTMF)Time: 50 100ms
  • DTMF Frequency Rate Error: ±1
  • Feeder Voltage: 48v
  • AC Adapter: Input 110V AC, Output 12V DC 1A

GSM Specification

  • GSM Frequency bands : Dual Band EGSM 900 and GSM 1800(GSM Phase 2+)
  • GSM class : Small MS
  • Transmit power :
  • Class 4(2W) for EGSM 900 
  • Class 1(1W) for GSM 1800
  • SIM card reader : External – connected via interface connector
  • Antenna : 50 Ohm antenna coaxial connector
  • Temperature range :
  • Normal operation : -20℃ to +55℃
  • Restricted operation : -25℃ to -20℃ and +55℃ to 70℃
  • Storage : -40℃ to +85℃

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