Nayax Card Readers: MQQT vs VPN Communication

MQTT vs VPN – Which Communication Is Better?

Aspect VPN mode (IP-sec) MQTT mode (TLS 8883)
Connection method Opens full IP tunnel to Nayax Outbound encrypted publish/subscribe
Bandwidth overhead High (keep-alives, routing) Low (optimized for telemetry)
Carrier compatibility Often breaks behind NAT or IPv6 Rarely filtered – NAT-friendly
If disabled Lose legacy desktop tools All core services still work

Bottom line: Stay on MQTT unless Nayax explicitly instructs otherwise.

2. T-Mobile MQT

Parameter Value Notes
APN fast.t-mobile.com Public T-Mobile APN
Communication Mode MQTT Enabled Leave VPN unchecked
GSM Network ID 310260 Improves network registration
MQTT Broker brokerir1.nayax.com:1883 Default Nayax broker
MQTT Ping Interval 600s 10-minute keep-alive

3. Verizon MQTT Settings

Parameter Value Notes
APN vzwinternet Dynamic IP default
Communication Mode MQTT Enabled VPN must remain OFF
GSM Network ID 311480 Verizon PLMN code
Keep-Alive Interval 2500s ~42 minutes

4. VPOS Touch MDB Level 3 Optimal Settings

Setting Optimal Configuration Purpose
MDB Level 3 Enables Always Idle mode
Contactless Delay 1 second Prevents accidental double-tap
Decimal Place 2 USD pricing format
EMV Contactless Limit 9900¢ Max $99 tap-to-pay
Extended Card Support MAESTRO + DDA Accepts broader EMV cards
Country Code 840 USA

Buy the VPOS Touch here: VPOS Touch on VapeTM

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