Landline Recorder Ultimate

This advanced digital landline recorder is designed to plug directly into any live telephone wall socket servicing the landline number you wish to monitor, expanding our comprehensive range of landline recorders.

Combining the intuitive design of a classic audio recorder with modern surveillance technology, it sets a new standard for covert call logging and evidential recording.

Features such as a long-life rechargeable lithium battery, password-protected security, and voice-emphasis filtering make it an essential tool for protecting your property or documenting nuisance calls.

Automatic Voice-Activated Call Logging

Once connected to a live telephone socket and set to record mode, this landline recorder operates completely automatically and silently.

There is no need to manually initiate recording before making or receiving a call; the internal SVOS (Super Voice Operated System) automatically triggers recording as soon as sound or electrical activity is detected on the line.

When the conversation ends, the unit automatically saves the call audio as an independent file and enters an ultra-low-power standby mode until the next call occurs.

Time & Date Stamped Files for Legal & Evidential Use

Unlike standard call logs that simply assign arbitrary numbers to recordings, this landline recorder automatically timestamps every file with the exact date and time the recording took place within the filename itself.

This critical feature provides clear, tamper-resistant chronological evidence essential for legal disputes, police reports, or formal investigation files.

If you require a simpler, battery-swappable alternative, you can also view our Landline Recorder Pro.

Rechargeable Battery & Extended Standby Performance

Powered by an internal rechargeable 300mAh lithium-polymer battery, the **landline recorder** Ultimate delivers up to 16 hours of continuous, non-stop recording or up to 70 days of standby time on a single charge.

For permanent, maintenance-free deployments, the device can remain plugged into a USB mains power supply continuously.

Massive 8GB Password-Protected Memory

Equipped with 8GB of onboard flash memory, the unit can store up to 1040 hours of audio in Long Play mode (or up to 48 hours in uncompressed CD-quality PCM mode).

Integrated password protection ensures that unauthorized users cannot access, play back, or delete stored call files without the correct passkey.

Voice-Emphasis Sound Filtering & Multi-Format Playback

Advanced digital firmware reduces low-frequency background hums while enhancing speech frequencies, automatically balancing volume differences between landline and cellular callers.

Listen to recorded calls directly through the built-in speaker, using the supplied earphones, or by connecting the unit to any Windows, Mac, or Linux computer via USB.

The device also doubles as a high-sensitivity room surveillance bug or dictation recorder with a 7-metre pickup radius.

Explore our full range of phone monitoring accessories for additional covert tools.

Provided you deploy your surveillance equipment for lawful purposes, the situations that suit using a voice recording device or landline call monitor are extensive.

If you have questions regarding telephone line setups or playback compatibility for your landline recorder, please feel free to contact our expert team today.

How long can the landline recorder record for on a single battery charge?

The internal rechargeable battery provides up to 16 hours of continuous recording or up to 70 days in voice-activated standby mode. Connecting the unit to a USB mains charger allows for indefinite 24/7 operation.

Do recorded files feature time and date stamps?

Yes. The device automatically names each separate recording file with the exact date and time the call occurred, providing reliable chronological evidence.

Will anyone on the telephone call hear clicks, tones, or line noise while the recorder is active?

No. The unit is completely digital with no moving parts or sound alerts, operating in complete silence without altering call quality.

Does the landline recorder need to be plugged into the same wall socket as the telephone?

No. It can be plugged into any spare, live BT-style telephone wall socket on the same line within the property, allowing for discreet placement in unused rooms or behind furniture.

Can I use this recorder if I have broadband on my landline?

Yes, but you must plug the recorder’s telephone lead into a standard ADSL filter attached to the wall socket to prevent broadband signal interference.

Will the recorder work on Virgin Media landlines?

Yes, as long as the Virgin telephone connection uses a standard BT-style wall plug format.

Can I use this recorder on an office PBX switchboard line?

No. This device is engineered strictly for single analogue landlines and will not function on digital multi-line office PBX switchboards.

How do I listen to my recorded call files?

You can listen back immediately using the built-in speaker, through the included earphones, or by connecting the unit via USB to a PC or Mac to play files through standard media software like VLC.

• Designed strictly for standard single analogue landline connections (BT/Virgin); incompatible with multi-line digital office PBX switchboards.
• When deployed on a broadband-enabled line, an ADSL filter (not included) must be placed between the wall socket and the recorder’s cable.
• Rechargeable 300mAh battery provides up to 70 days standby or 16 hours active recording; an optional USB wall charger can be connected for continuous mains power.
• Offloading and playing back files via computer requires a USB port and a standard audio media player (such as VLC Media Player).
• Users are responsible for ensuring all telephone call recording complies with applicable privacy laws and regulations in their jurisdiction.

• Automatic, silent landline call recorder designed for standard single analogue telephone lines.
• SVOS (Super Voice Operated System) automatically starts and stops recording when line activity is detected.
• Automatic time and date filename stamping provides accurate chronological reference for evidential purposes.
• 8GB internal flash memory stores up to 1040 hours of call recordings across 4 organized folders (A, B, C, D).
• Password protection feature secures stored recordings against unauthorized playback or computer offloading.
• Advanced voice-emphasis noise filtering (LCF mode and ALC automatic gain control) balances caller speech clarity.
• Flexible power options: internal rechargeable battery (up to 70 days standby / 16 hours continuous) or continuous USB mains power.
• Multiple playback routes: onboard speaker, supplied earphones, or USB plug-and-play connection to PC, Mac, or Linux.
• Functions as a standalone room surveillance or dictation recorder with a 7-metre audio pickup radius.

• Device Type: Automatic Voice-Activated Digital Landline Recorder & Room Surveillance Bug
• Line Compatibility: Single PSTN Analogue Landlines (BT / Virgin style sockets)
• Internal Memory: 8GB Flash Memory (Organized into 4 folders, up to 999 files per folder)
• Recording Modes & Memory Capacity:
  • PCM Mode (CD Quality): 48 Hours
  • HQ Mode (High Quality): 130 Hours
  • SP Mode (Standard Play): 260 Hours
  • LP Mode (Long Play): 1040 Hours
• Audio Formats Supported: MP3, WAV, WMA Playback
• Power Source: Built-in Rechargeable 3.7V 300mAh Lithium-Polymer Battery or USB Mains Power
• Battery Runtimes: Up to 16 hours continuous recording / Up to 70 days SVOS standby
• Security: User-defined password protection for memory lock
• Noise Filtering: Low Cut Filter (LCF) and Voice Band Frequency Enhancement
• Dimensions & Weight: 92.5 mm × 32.5 mm × 15.5 mm / Weight: 36 grams
• OS Compatibility: Windows 10, 11 / Mac OS X / Linux (No driver installation required)

• Landline Recorder Ultimate (8GB Internal Memory)
• Telephone Line Connection Cable & Adapter
• USB Data / Charging Cable
• Earphones for Direct Playback
• Clip-On Microphone
• Audio Connection Cable
• Comprehensive Operating Manual