how-to-lock-and-unlock-the-snom-m85

It is hard to imagine a job that doesn’t need a phone. There are an endless amount of different and unique jobs our there, but I’m pretty sure every one of them, one way or another, needs a phone in some capacity of the business.

For this blog, I want to focus on the jobs that are not set in a cushy air conditioned office. Instead, I want to talk about the jobs that need wireless phones, or better yet, wireless VoIP phones.

What is the first job that comes to mind when you think of wireless phones? For me, I immediately thought of a construction job. Because construction can get messy, I would also have to assume that the wireless phones they are using are also ruggedized AND probably even DECT!

What kind of phone could cover all those bases? Well, I’m sure there are several. But for this blog, we are going to use the Snom M85 as an example. This is a wireless DECT phone that can take a beating and will last you a very long time. m85

Aside from this phone’s long range and nearly bulletproof casing, there is one weakness. This weakness is something that all phones have, their buttons. No matter how much of a beating this phone can take, if you press up against something or if you drop it down the stairs, you run the extreme risk of accidental use. Like….calling someone, paging someone, etc.

Luckily, the Snom M85 has you covered with its Automatic Keylock. This is a function that can take the frustration out of your day, and it is easy to manage.

How to Lock and Unlock the Snom M85 Ruggedized DECT Phone

If you would like to lock and unlock your phone manually every time, then all you have to do is:

  1. Press the star key and hold down for at least 3 seconds
  2. A lock symbol will appear in the top line of the display
  3. When pushing a button while locked, the keylock message will appear

See, that was easy! To unlock your M85 after it has been locked all you do is:

  1. Hold the star key down until the lock icon disappears
  2. The phone will then be unlocked and ready for use

That might be the easiest set of directions I have ever seen! But one more cool feature this phone has is the Automatic Keylock feature.

How to Use Automatic Keylock on the Snom M85


This will allow the phone to lock itself if it has not been used in a selected period of time. How do you set this? Again, simple! Just follow these easy steps:

  1. From the menu, select Security
  2. Then select Automatic keylock
  3. From there must select the number of second or minutes. Your choices are 15, 30, or 45 seconds, or 1 to 5 minutes. This will set the inactivity period before your phone locks itself
  4. Press the red End Call key until you return to the home screen

And that’s it! Depending on how long you selected, if your phone is not active, it will lock itself and prevent unwanted phone calls, leaving your phone off the hook, or draining the battery.

To unlock the phone after it has locked itself, just use the same manual steps and hold the star key until it unlocks.

Do you have a ruggedized wireless phone at work? Do you use the Snom M85? If not, what do you use? We want to know! Also, what How-To blogs would you like to see in the future? Let us know in the comments!

Snom M85 Rugged DECT VoIP Handset
Introducing the Snom M85 Ruggedized DECT (wireless) VoIP Handset.

I suppose it’s fitting that when you do a Google search for “M85” you’ll find, as the number one search result, Wikipedia’s description of the well-known “heavy machine gun…that was used primarily for turreted applications in armored fighting vehicles.”

When you want something done, you bring out the big guns.

So it is with the Snom M85.

Just like its unrelated namesake, the M85 is comfortable in tough environments like hard hat zones, the outdoors, and industrial areas. It’s able to withstand the abuse with protective features such as:

  • IP65 rated protective enclosure that is:
    • Shockproof
    • Splash-proof
    • Dust-proof
    • Operational in temperatures ranging from 5°F to 131°F (-15° and +55° Celsius)

Durability + Convenience

If you need a mobile handset that you can bang around in a warehouse or across a multi-story building, the Snom M85 is for you. It takes a beating while still offering convenient features such as:

  • Bluetooth headset compatibility
  • 3.5 mm standard phone jack for wired headsets
  • Large 2″ color backlit display
  • Speakerphone
  • LED indicator light that lets you know if you missed a call, have a new message, or the battery is low

Extended Range

Typical signal range for the M85 handset is:

  • Indoors = Up to ~150 feet (50 meters)
  • Outdoors = Up to ~900 feet (300 meters) when there are no obstructions

When you need even more range, the compatible Snom M700 Base Station can be paired with additional base stations or the Snom M5 DECT Repeater which extends the reception range and bridges gaps between base stations.

When multiple M700 base stations are linked together, you can use your M85 headset in a larger area – your handsets’s DECT signal will seamlessly transfer uninterrupted from one station to the next.

Multiple M700 Base Stations that are linked together give M85 Handsets an uninterrupted and secure wireless DECT connection to your voice network. The M700 can support up to 200 individual handsets and 40 additional base stations in a single installation.

The M700 runs on Power over Ethernet (PoE) so no additional power source is needed. When you deploy a multi-cell solution, such as explained above, you can ensure seamless handover and increased reception range.

What is DECT?

If you’re still a little unsure what DECT is, here’s a broad explanation.

DECT systems operate with a wireless handset but, these phones have a base station that is hardwired to an internet connection and then the signal is transmitted wirelessly to the handset. These are generally single line phones, have a range of 300 square feet from the base station, and signal repeaters are available if you need to increase the handsets range from the base station.

To learn more, check out our Guide to Wireless VoIP.
Download Wireless VoIP Guide

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