The VTech C4500 is a SIP Contemporary 2-Line Accessory Handset for cordless phone systems, featuring DECT 6.0 technology, caller ID compatibility, integration with SIP servers, and support for two lines with conference calling. It supports English and is designed for hotel/hospitality use. Below are the key specifications, installation, operation, programming, and troubleshooting instructions.
Unpack the handset and ensure all components are present: cordless handset, rechargeable battery pack (Ni-MH 2.4V 550mAh), battery cover, belt clip, handset charger (C4300/C4310). For battery replacement: If cover secured by screw, remove screw and cover; align battery pack with "THIS SIDE UP" label and insert; replace cover by aligning tabs and sliding until secure, reinsert screw if applicable. Charge new battery by placing handset in charging base/stand connected to PoE for at least 10 hours initially (full charge up to 6 hours). Maximum battery life: >7 hours talk time, 6 days standby. Place charging stand 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 C4500 is a DECT 6.0 accessory handset with 2-line support, features including caller ID (subscription required), SIP integration, redial, adjustable volume, ringer options. Supports basic calling, intercom, call transfer, and conference between lines when paired with a compatible base. Handset layout includes dedicated buttons for TALK, /SPEAKER, HOLD, CONF, FLASH, REDIAL, MUTE, INTERCOM, VOLUME +/-, LINE 1/LINE 2, numeric keys, and MESSAGE WAITING LED.
Applications: Hotel/hospitality cordless telephony; Accessory handset for SIP Contemporary 2-Line series.
CAUTION! To prevent electrical shock/equipment damage, unplug before installation. Use only supplied batteries and chargers. Connect only to host equipment, not directly to PSTN. If in doubt about wiring, consult qualified technician.
WARNING! Do not use on circuits exceeding specified voltage; 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 (maintain 6-inch distance). Dispose of batteries per local regulations and RBRC program. Avoid pushing objects into slots; clean with damp cloth only. Keep small metallic objects away from handset.
Shut off power if applicable. Remove old handset cover and screw if present. Label battery connector before disconnecting. Disconnect battery; do not let fall into stand. Remove old charging stand from wall.
Connect Cat-5 network cable to charging stand/base (C4300/C4310 or S2420) and PoE network wall jack. Install battery in handset (align "THIS SIDE UP", snap cover). Place handset in charging cradle for initial 10 hours. For wall mount, turn bracket upside down, align eyelets with wall studs, slide to lock, route cable. Register handset: On idle handset, press *331734# then HOLD; base announces registration.
Terminal Designations: RJ45 port for Cat-5 network cable on base/stand.
Standard Setup: PoE network wall jack to Cat-5 cable to base/stand port.
Wall Mount: Route cables through bracket slots. [Brief diagram description: PoE wall jack → Cat-5 cable → Base RJ45 port.]
CAUTION! All wiring must conform to local/national electrical codes. Use PoE compliant sources.
After charging and registration, handset displays idle screen with LINE 1/LINE 2 indicators. Test by pressing /FIND HANDSET on base (handset rings). Adjust volume/ringer when idle.
Programming for directory and speed dial handled via SIP server and base configuration; refer to SIP Phone System Administration Guide. Handset registration/deregistration via codes.
Adjust via handset keys: Ringer volume, listening volume. Advanced SIP settings via base admin guide.
| Setting | Default | Options | Comments |
|---|---|---|---|
| Ringer Volume | Medium | Off to High | Idle adjustment |
| Listening Volume | Medium | Adjustable | During call |
| Registration | N/A | Register/Deregister | Via code |
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Handset does not work at all | No power, battery depleted, not registered. | Charge battery (30 min initial if depleted); register to base; check PoE connection. |
| No dial tone | SIP server issue, poor connection. | Verify SIP guide; secure Cat-5 cable; reduce interference. |
| Cannot dial out | Incorrect line selection, SIP config. | Press LINE 1/LINE 2; check SIP settings. |
| Handset does not ring | Ringer off, out of range, low volume. | Adjust ringer; ensure within range; check SIP incoming settings. |
| Poor audio quality | Interference, low battery. | Move from sources; charge battery. |