Snom SNO-M85
Snom M85 Business Handset User Manual
Model: SNO-M85 | Brand: Snom
Introduction
The Snom M85 is a robust and versatile IP-DECT handset designed for demanding professional environments. It features a durable, shockproof, and dust/water-resistant (IP65) design, making it suitable for industrial use or construction sites. Key features include a programmable alarm key for enhanced safety, Bluetooth connectivity for headsets, and a 3.5 mm jack for wired audio accessories.
This manual provides comprehensive instructions for setting up, operating, and maintaining your Snom M85 Business Handset.
Package Contents

The Snom M85 package typically includes the following components:
- Snom M85 Handset
- Charging Cradle
- Power Adapter
- Rechargeable Battery (pre-installed or separate)
- Quick Start Guide (not included in this digital manual)
Image: Snom M85 Handset, Charging Cradle, and Power Adapter.
Setup
1. Charging the Handset
Before initial use, fully charge the Snom M85 handset. Place the handset into the charging cradle, ensuring it seats correctly. The charging indicator on the handset or cradle will illuminate to confirm charging. A full charge typically takes several hours.

Important: Use only the original power adapter and charging cradle provided with your Snom M85. Using unauthorized accessories may damage the device and void the warranty.
Image: Snom M85 Handset securely placed in its charging cradle.
2. Registering with a Base Station
The Snom M85 handset functions with an M300 or M700 base station. Refer to your base station's manual for specific registration procedures. Generally, you will need to:
- Put the base station into registration mode.
- On the M85 handset, navigate to the registration menu (typically found under Settings > System > Registration).
- Follow the on-screen prompts to complete the registration process. You may need to enter a PIN, which is usually 0000 by default for the base station.
Once successfully registered, the handset will display the base station's name or a confirmation message.
Operating the Handset
Keypad and Display Overview

The Snom M85 features a backlit keypad with 24 keys and a clear display. The display provides 8 lines of information, including a status line, 6 lines for menus or context area, and a context-sensitive function key line.
- Navigation Key: Central circular key for menu navigation (Up, Down, Left, Right) and selection (OK/Center).
- Soft Keys: Context-sensitive keys located directly below the display, their function changes based on the current screen.
- Call Key: Initiates or answers a call.
- End Call/Power Key: Ends a call or powers the handset on/off (long press).
- Message Key: Accesses voicemail or message notifications.
- Programmable Alarm Key: A dedicated key (often red) that can be configured to trigger an emergency call or alert.
Image: Snom M85 Handset showing the "Contacts" menu on its display.
Making and Receiving Calls
- To Make a Call: Dial the number using the keypad and press the Call key.
- To Answer a Call: Press the Call key when the phone rings.
- To End a Call: Press the End Call key.
- Call Swapping: The handset supports call swapping between an active call and a call on hold.
Using the Alarm Key
The programmable alarm key is a critical safety feature. It can be configured to send an automatic alert or dial a pre-defined emergency number when pressed. Consult your system administrator or base station manual for configuration details.
Bluetooth Connectivity
The M85 supports Bluetooth for connecting wireless headsets. To pair a Bluetooth headset:
- Enable Bluetooth on your M85 handset via the Settings menu.
- Put your Bluetooth headset into pairing mode.
- Scan for devices on the M85 and select your headset from the list.
- Enter the pairing PIN if prompted (usually 0000 or 1234 for headsets).
Maintenance
Cleaning the Handset
To clean the Snom M85, use a soft, damp cloth. Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the surface and internal components. Ensure the handset is powered off and disconnected from the charging cradle before cleaning.
Battery Care
For optimal battery life:
- Avoid extreme temperatures.
- Do not leave the handset uncharged for extended periods.
- If the battery performance significantly degrades, it may need replacement. Contact Snom support or an authorized service provider.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Handset not charging | Not properly seated in cradle; faulty power adapter/cradle; dirty charging contacts. | Ensure handset is correctly placed. Check power connection. Clean charging contacts on handset and cradle with a dry cloth. |
| No dial tone/Cannot make calls | Not registered to base station; out of range; base station issue. | Verify handset registration. Move closer to the base station. Check base station status. |
| Poor audio quality | Interference; low signal; faulty headset. | Move away from other electronic devices. Check signal strength. Test with a different headset if applicable. |
| Handset frozen/unresponsive | Software glitch. | Remove and reinsert the battery to perform a soft reset. |
If the problem persists after attempting these solutions, please contact Snom technical support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | SNO-M85 |
| Dimensions (L x W x H) | 7 x 3 x 6 inches |
| Item Weight | 1.03 pounds |
| Display | 8 lines, 16 pixels/line, 16 characters/line (1 status, 6 menu/context, 1 function key) |
| Keypad | Backlit, 24 keys |
| Connectivity | IP-DECT (requires M300/M700 base station), Bluetooth, 3.5 mm jack |
| Protection Rating | IP65 (dust and water resistant) |
| Safety Features | Integrated deadman sensor, programmable alarm key |
| Power Source | Corded Electric (via charging cradle) |
| Conference Call Capability | 3-way |
| Software Update | Over the air via M300 or M700 base station |
| UPC | 801964776259 |
Warranty and Support
Warranty Information
Snom products are covered by a limited warranty. Please refer to the warranty card included with your product or visit the official Snom website for detailed warranty terms and conditions. Keep your proof of purchase for warranty claims.
Technical Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact Snom technical support. Support contact information can typically be found on the Snom official website or in the product packaging.
When contacting support, please have your product model number (SNO-M85) and serial number ready.
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