We supply the best tough phones on the biggest airtime networks

Frequently Asked Questions (FAQs)

What is an IP rating (ie IP67) ?

What is Military Standard MIL-STD-810?

What is an “Intrinsically Safe” Mobile Phone?

What is Push To Talk (PTT)?

How do I connect my phone to the internet?

 


The IP (Ingress Protection) rating of a mobile phone gives an indication of how well the phone’s casing resists the intrusion of dust and water. The rating is given as two numbers; the first for dust (on a scale from 0 to 6) and the second for liquids (on a scale from 0 to 8). The higher the numbers the better the phone is at preventing dust and liquids from getting inside the casing. Below is the IP Rating Table as per the IEC (International Electrotechnical Commission) 60529 international standard.

IP (Ingress Protection) Rating Table

 

 

 SOLIDS (1st number)

 

 LIQUIDS (2nd number)

0

 No protection

0

 No protection

1

 Protected against objects > 50mm (hands)

1

 Protected against dripping water or condensation

2

 Protected against objects > 12mm (fingers)

2

 Protected against dripping water when tilted up to 15 degree from vertical

3

 Protected against objects > 2.5mm (tools, thick wires)

3

 Protected against water spray when tilted up to 60 degree from vertical

4

 Protected against objects > 1mm (screws, small tools)

4

 Protected against water splashes from all directions

5

 Protected against dust, but not entirely prevented

5

 Protected against low pressure jets of water

6

 Dust tight. Totally protected against dust

6

 Protected against powerful jets of water

7

 N/A

7

 Protection against the effects of immersion in water (up to 1 metre)

8

 N/A

8

 Protected against continuous immersion in water (but under manufacturer defined conditions)

So a tough mobile phone with an Ingress Protection rating of IP67 means that it is totally protected against dust and offers protection against limited immersion in liquids.

 

What is Military Standard MIL-STD-810?

MIL-STD-810 is an equipment testing standard of the United States Department of defence.

The standard is described in a comprehensive document of some 600 pages testing 24 attributes and are designed to "provide a degree of confidence that materiel can physically and functionally withstand the relatively infrequent, non-repetitive shocks encountered in handling, transportation and service environments." The various tests are divided into the following sub categories:

  • 500.4 Low Pressure (Altitude)
  • 501.4 High Temperature
  • 502.4 Low Temperature
  • 503.4 Temperature Shock
  • 504 Contamination by Fluids
  • 505.4 Solar Radiation (Sunshine)
  • 506.4 Rain
  • 507.4 Humidity
  • 508.5 Fungus
  • 509.4 Salt Fog
  • 510.4 Sand and Dust
  • 511.4 Explosive Atmosphere
  • 512.4 Immersion
  • 513.5 Acceleration
  • 514.5 Vibration
  • 515.5 Acoustic Noise
  • 516.5 Shock
  • 517 Pyroshock
  • 518 Acidic Atmosphere
  • 519.5 Gunfire Vibration
  • 520.2 Temperature, Humidity, Vibration, and Altitude
  • 521.2 Icing/Freezing Rain
  • 522 Ballistic Shock
  • 523.2 Vibro-Acoustic/Temperature

 

What is an “Intrinsically Safe” Mobile Phone?

Developed for safe operation of process control instrumentation in hazardous areas, particularly North Sea oil and gas platforms, “Intrinsically Safe” (IS) is a protection certification for the safe operation with electronic equipment in explosive atmospheres.

A mobile phone can be an ignition source for flammable gases, dusts or fuels, which is why you see signs on the forecourts of petrol stations requesting that mobile phones are not used. A mobile phone termed “intrinsically safe” has been designed so that any components that produce sparks or which could generate enough heat to cause an ignition have been removed or shielded. So a mobile phone which is fully “intrinsically safe” will not ignite explosives whilst being used.

 

What is Push To Talk (PTT)?

Push To Talk (PTT) technology enables a mobile phone to be used like a walkie-talkie radio, enabling instant ‘one-to-one’ or ‘one-to-many’ communication at the press of a button.

By using the global mobile phone network, the advantage of almost unlimited coverage around the world can be gained. Other advantages include the fact that communication is made instantly as opposed to having to dial a number and that the costs of the call are calculated on the time actually spent talking and not on the connection time of the call.

The Push To Talk service is available in the UK on the T-mobile, O2, Vodafone, Orange and Virgin networks using a PTT enabled phone. All users of the service have to be on the same network.

Instead of transmitting/receiving radio frequencies, PTT over cellular uses the 2.5G or 3G GPRS packet-switched data network and VOIP technology. It does not usually utilise the subscriber’s airtime minutes. Call costs are calculated on the time actually spent speaking (data packets sent) and not on the time the call is connected.

There are a growing number of specialist providers who can set up and install the PTT service to your phones and PCs. You need to have a compatible mobile phone with GPRS. The provider will need to alter the APN settings on the phone and this can often be performed via a text message. Most Nokias and HTC handsets can be used and the number of compatible phones is growing all the time.

 

How do I connect my phone to the internet?

Your phone is connected to the internet using an APN or Access Point Name. This can can be thought of as being like a gate or portal from the GPRS 2.5G or 3G network into the internet. Each network operator has a different APN which needs to be set up on your phone and the APNs can differ depending on whether you are on Contract or Pay As You Go and whether you wish to use WAP or Mobile Web/Email.

Very often the settings are provided automatically via a text message to your phone from the network operator but occasionally the settings need to be input manually.The information required for the UK network providers can be found here.