FAQ Bluetooth

What does it cost to send or receive a message via Bluetooth?

Absolutely nothing, it is totally free for both the sender and the receiver.

What is the maximum distance from which messages can be sent via Bluetooth?

There are three types of Bluetooth device on the market according to their broadcasting power and range:
-Class 1: 100m
-Class 2: 30m
-Class 3: 1m
All Bluetooth broadcasters forming part of N-vio are class 1. The maximum transmission distance depends on the power of each telephone’s Bluetooth receiver. This means that depending on the rating of the Bluetooth radio of the mobile telephone used the distance can vary from 20 to 100m.

Can Bluetooth connections be made up to 1Km?

Technically it is possible to communicate two Bluetooth devices at a distance of 1Km, but it is only possible between higher rating devices equipped with high gain antennas. Under no circumstances can a mobile telephone accept messages sent by this type of Bluetooth emitter.

How many simultaneous connections can it support?

For each Bluetooth dongle up to 7 connections (piconets) are supported. Depending on the N-vio model you choose you can obtain up to 21 connections. This means that you can send content to 21 users at the same time. During gatherings this allows up to 200 people to have the sensation of simultaneous access to the service, since the moment the download request is initiated free connections appear and are rapidly reassigned.

What is the information download/sending rate?

N-vio has a maximum transfer rate of 1Mbps. The download rate will also vary according to the distance between devices and the number of devices connected simultaneously.

How does Bluetooth manage user privacy?

The only way of extracting information on a user with their Bluetooth enabled is through their MAC address, a unique identifying number in the world and established by the factory. Neither the user’s identity, nor telephone number are visible in this mode.

What requirements must a mobile telephone fulfil in order to receive messages?

First, it needs to have Bluetooth enabled and configured as visible. Secondly, it needs to support the Obex standard and to have the OPUSH port declared. This covers most terminals manufactured by the leading brands. The oldest Blackberry models have almost all the Bluetooth options disabled in the firmware, although some new models already allow file exchanges.