Description
Reviews
| Brand | - |
| Category | Office Equipment, Supplies & Services / Phone Recording Devices |
| Origin | - |
| Brand | Zipei |
| Model Number | IP1-F |
| Interface Type | USB 2.0 |
| Detection Method | Polarity Reversal & Soft Off-Hook |
| Supported OS | Windows 10/11, Linux |
| Audio Format | WAV, PCM |
| Sample Rate | 8kHz to 48kHz Adjustable |
| Development Support | SDK included (C++, C#, Java) |
| Power Supply | USB Bus Powered |
| Dimensions | 75mm x 45mm x 20mm |
Anonymous
Mar 24, 2026
Rating: 4/5
Solid hardware, good driver support
Works well on Windows 11. The soft off-hook feature is sensitive but accurate. Would give 5 stars if the Linux examples were more extensive.
Anonymous
Mar 22, 2026
Rating: 5/5
Exactly what was needed for prototyping
Clean audio output and precise event triggering. This kit saved us weeks of building a solution from scratch.
Anonymous
Mar 22, 2026
Rating: 5/5
Reliable for high-volume recording
We deployed ten of these units for our QA team. No dropouts or audio glitches after three months of continuous operation.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for custom call logging apps
The SDK documentation is clear and the polarity reversal detection works flawlessly with our legacy PBX system. Integration took less than a day.
Anonymous
Mar 15, 2026
Rating: 3/5
Good but requires coding knowledge
The hardware works fine, but it is definitely a development kit. If you aren't a programmer, you might struggle to set it up without pre-made software.
Anonymous
Mar 10, 2026
Rating: 4/5
Great value for developers
For the price, you get a lot of functionality. The API is straightforward. Just make sure your phone line actually supports polarity reversal.
Q: Does this device work with VoIP lines or only analog PSTN?
A: The IP1-F is designed specifically for analog PSTN lines to detect polarity reversal. It is not compatible with pure VoIP digital streams without an analog telephone adapter (ATA).
Q: Can this record two calls simultaneously?
A: No, each IP1-F unit handles one phone line. To record multiple lines simultaneously, you need to connect multiple devices to your computer's USB ports.
Q: Do you provide sample code for visual basic?
A: We currently provide samples for C++, C#, and Java. However, since the DLL is standard, it can be imported into Visual Basic .NET projects easily.
Q: Is the SDK compatible with Python?
A: While the native SDK is written for C++ and C#, many users have successfully created Python wrappers using ctypes or SWIG. We do not provide official Python libraries yet.
Q: What happens if my phone line does not support polarity reversal?
A: If polarity reversal is not present, the device can still function using the 'Soft Off-Hook' detection method, which monitors audio energy levels to determine call status, though it may be slightly less precise.
Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels
$136.00
Tea Packaging Gift Box - Empty Ceramic Tea Canister for Longjing, Green Tea, White Tea, Ripe Pu'er, Universal Packaging
$68.00
Ruke Floating Skimmer Machine for Sewage Treatment Plant Biochemical Tanks
$12,064.00
Car Tire Stone Removal Tool Rock Picker Anti-Explosion Hook Stone Cleaner Car Hook Window Breaker Hammer
$2.07
Negotiable Price: Siemens 10mA Leakage Circuit Breaker, 2P 16A Ground Fault Protection
$130.00
Jingdezhen Ceramic Brush Washer Set, Blue and White Porcelain Calligraphy Ink Well and Pen Holder
$14.99
Beishanlang Outdoor Camping Foldable Lighting Stand Aluminum Alloy Portable Lamp Pole Bracket Camp Light Night Fishing Light
$49.00
Mobile Gas Cylinder Stand with Wheels - Plastic Base Tray for Propane Tanks and Water Buckets
$10.65
Fast Grocery Shopping Cart, Foldable Portable Home Trolley with Stair-Climbing Wheels, Lightweight Hand Truck for Seniors
$299.06
Car Tire Stone Hook - Multi-Function Rust-Resistant Tool for Removing Stones from Tires
$8.33
Zunjue 100% Cotton Watercolor Paper Mini Portable Pocket Sketchbook for Travel, 300g Cold Press Thickened Art Notebook for Gouache, Oil Pastel, and Colored Pencil
$3.32
Large Capacity Waterproof Phone Pouch for Outdoor Diving, Rafting, and Swimming - Touchscreen Compatible Waist Bag with Storage
$2.50
Custom Office Meeting Door Sign – Switchable 'Do Not Disturb' & 'Please Knock' Plate
$5.00
Multi-Function Over-Toilet Storage Rack – No-Drill, Multi-Tier Floor Stand for Bathroom Laundry Gap
$28.48
External Round Thread Welding Turning Tool, Threading Tool, Zhuzhou Alloy YT15 YG8 YW2 Lathe Tools, 20*25*30 Square
$17.00
Traditional Children's Rattle Drum, Classic Baby Hand-Shake Instrument, Plastic Toy for Newborn Boys and Girls
$2.90
Ultra-Soft Dual-Tip Blending Stump Set for Oil Pastels & Sketching – Washable Smudge Tools for Shading and Detail Work
$3.39
Chengzhutang Foldable Water Bucket Chinese Painting Brush Washer Gouache Watercolor Paint Cleaning Pail Art Student Brush Basin Collapsible Cup Oil Painting Color Pigment Bucket
$9.80
Meiao Dental Nobel Biocare Import Package - Swedish Dental Implants, Crowns, Abutments, and Dentures
$15,888.00
Outdoor Waterproof ABS Plastic Case - Shockproof Moisture-Proof Storage Box with Cushioning for EDC Tools and Travel
$12.00
Natural Loofah Dish Cloth - Oil-Resistant, Non-Scratch Industrial Scouring Pad
$3.43
Paper Blending Stumps for Sketching - Professional Art Supplies for Highlights, Shadows, Pastels, Oil Pastels, and Colored Pencils - Complete Set for Beginners and Artists
$4.40
Aromatherapy Cup Candle Container DIY Crystal Diffuser Stone Cup Plaster Cement Cup Glass Vessel Demagnetizing Bowl
$4.68
American Chicano West Coast Style Neon Sign - Gothic Script Rap Shop Decor, Opening Gift, Living Room Light-Up Art
$279.00
Data Cable Organizer, Desktop Fixed Charging Cable Storage, Solid Wood Phone Power Cord Clip, Anti-Tangle Adhesive Hook, No-Drill Computer Wire Winder, Wooden Edge Hanging Cable Collector
$35.00
Forest Wooden House Building Blocks - Educational Treehouse Toy for Boys and Girls, Board Game Trendy Blind Box
$12.90
German B&W Safety Case for Folding Knives - EDC Tool Storage Box, Waterproof, Moisture-Proof, Shockproof, Models 1000-3000
$245.00
Fuzao Kids 3D Printing Pen 2026 New Arrival Viral Pretend Play Toy for Girls Educational Gift for Ages 3+ Children's Day
$48.90
UHT Ultra-High Temperature Sterilizer, Room-Temperature Set Yogurt Production Line, Yogurt Processing Equipment, Stirred Yogurt System
$80,640.00
Professional Sketch Blending Kit for Art Students: Gray Tone Pencils, Sponges, Stumps, and Erasers
$4.17
![[2026 New Edition Labor Contract] Social Security New Regulations, Labor Contracts for Individual Businesses, Temporary Workers, Part-Time Staff, Onboarding Registration Forms, Factory Employee Employment Templates, Probationary Period Labor Cooperation and Partnership Agreements](https://www.gosteppe.com/cache/medium/product/388205/legacy-main-5e4718a8989ad3528843f7ce.webp)
