The VTech 15750 is a DECT 6.0 cordless telephone system with Bluetooth connectivity for up to 2 mobile phones and 1 headset, digital answering machine, caller ID, and expandable design (up to 5 handsets). It features a backlit display, speakerphone, phonebook (100 home entries, up to 1500 per mobile), call log (50 entries), redial (5 entries), call block (20 entries), quiet mode, voicemail indicator, ECO mode, power-fail backup, and conference calls. Supports English. Below are the key specifications, installation, operation, programming, and troubleshooting instructions.
Unpack the phone and ensure all components are present: telephone base, cordless handset(s), rechargeable Ni-MH battery pack(s) (BT183342/BT283342, 2.4V 400mAh), battery compartment cover(s), base power adapter (6V DC), charger(s) and adapter(s) for additional handsets, telephone line cord, user's manual. Install batteries in handsets (this side up, plug connector, snap cover) and charge for 16 hours before first use. Place base away from water, heat sources, and interference. Use wall mount bracket if desired.
WARNING! Failure to read and follow all instructions carefully before installing or operating this control could cause personal injury and/or property damage. Save these instructions.
The VTech 15750 is a DECT 6.0 cordless phone with Bluetooth for up to 2 mobiles and 1 headset, digital answering system (up to 99 messages, ~15 min recording time). Features include backlit LCD display, speakerphone, adjustable ringer, 100-name home phonebook (up to 1500 per mobile phonebook), caller ID log, 5-number redial, call block, quiet mode, voicemail waiting indicator, call screening, remote access, ECO mode, power-fail backup, conference calls, and one-touch broadcast. Supports English. Handset and base layouts include navigation keys, volume controls, dedicated buttons for mute, redial, find handset, Bluetooth (HOME/MOBILE 1/2), INT.
Applications: Residential cordless telephony with mobile integration; Compatible with DSL/Caller ID; Up to 5 handsets.
CAUTION! To prevent electrical shock/equipment damage, unplug before installation. Use only supplied adapters. If in doubt about wiring, consult qualified electrician.
WARNING! Do not use on circuits exceeding 120 VAC; improper use can cause shock/fire. All wiring must conform to local/national electrical codes. Avoid use during storms, near gas leaks, or with pacemakers without consulting doctor. Dispose of batteries per local regulations. Install DSL filter if using high-speed internet. Base must remain plugged into mains; use only NiMH batteries.
Shut off power if applicable. Remove old phone cover. Label wires before disconnecting. Disconnect wires one at a time; do not let fall into wall. Remove old base from wall.
Plug telephone line cord into base and wall jack (use DSL filter if needed). Plug power adapter into base and unswitched outlet. Install batteries in handsets (this side up). Place handsets in base/chargers to charge for 16 hours. For wall mount, attach bracket, slide onto plate, route cords. Register additional handsets via MENU > Registration. Pair Bluetooth: MENU > Bluetooth > Add mobile/headset (PIN 0000).
Terminal Designations: RJ11 jack for line cord on base; DC jack for power adapter.
Standard Setup: Wall jack to DSL filter (if needed) to base RJ11; Power outlet to adapter to base DC jack.
Wall Mount: Route cords through bracket slots.
CAUTION! All wiring must conform to local/national electrical codes. Do not use switched outlets.
After charging, lift handset and listen for dial tone. Test by dialing a number and adjusting volume. Verify CHARGE light on base. Test Bluetooth pairing and mobile calls. Check power-fail backup by unplugging power with charged handset in base.
View via Menu > Call log; new calls with NEW icon. Dial back with HOME/RECALL or MOBILE 1/2. Save to phonebook via OPTION > Save to phonebook.
Access menu with MENU/SELECT. Set date/time, program phonebook, configure ringer.
Enter menu via MENU/SELECT. Adjust LCD language, key tone, ringer volume/tone, voicemail number, call block, quiet mode.
| Setting | Default | Options | Comments |
|---|---|---|---|
| LCD Language | English | English | Fixed |
| Key Tone | On | On/Off | Beep on key press |
| Ringer Volume | Medium | High/Medium/Low/Off | Handset ringer |
| Ringer Tone | Tone 1 | 1-10 | Select ring pattern |
| Voicemail Number | None | Custom | Service provider number |
| Call Block | Off | On/Off, up to 20 entries | Block unknown calls |
| Quiet Mode | Off | On/Off with duration | Silence ringer/alarms |
| ECO Mode | Off | On/Off | Power saving, halves range |
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Telephone does not work at all | Power off, low battery. | Check power adapter, charge battery; ensure base installed properly. |
| Display shows "No line" or no dial tone | Wiring issue, service problem. | Test line cord on another phone; contact provider; install DSL filter. |
| Cannot pair/connect Bluetooth | Out of range, PIN error. | Move closer; enter PIN 0000; reset Bluetooth via menu. |
| Cannot download phonebook | Not paired/connected. | Ensure mobile connected; retry download via menu. |
| Power-fail backup not working | Battery low. | Charge handset fully; place in base during outage. |