GSM Video Intercom (code & prox) SIM installation guide

Which SIM does the Reno GSM video intercom take?

A standard size SIM (2FF), voice-capable, PIN-free. The Reno pairs GSM calling with a keypad and prox reader, so the SIM carries the calling side while codes and tags work locally.

Which network?

2G hardware — it needs a network still broadcasting 2G at the entrance. A multi-network SIM keeps it registered on the strongest survivor and moves with the coverage, which spares the panel from dying with any single operator's 2G.

Fitting the SIM

For the installing engineer, power down:

1. Open the unit; fit the standard SIM in the holder.
2. Antenna on before power, clear of the panel's metalwork.

First power-up

Let it register, then program per the manual: call numbers, keypad codes, prox tags. Test all three access routes — call-and-release, code, tag — before handover.

If it won't connect

• No registration: 2G present? Old-phone test at the panel.
• Codes and tags fine, calls dead: the SIM side — credit, programming, signal.
• Programming ignored: syntax and SMS centre number.

FAQ

Do codes and tags need the SIM? No — they work locally. Only calling rides the network.

Video over GSM? The video side depends on kit configuration; the GSM SIM primarily carries the audio calling.

2G future? Limited — plan around your area's switch-off timeline.