VTech 2425 SIP Cordless 2-Line Hotel Telephone User Manual

The VTech 2425 (CTM-S2425HC) is a SIP cordless 2-line accessory handset and charging stand for hotel telephony, designed for use with the CTM-S2422 base system. It features cordless handsets with speakerphone, speed dial keys (up to 13 locations), message waiting indicators via SIP (RFC 3261), adjustable volume (6 levels), mute/hold, emergency calling, and PoE support. Intended for professional installation in hospitality environments, connecting only to host PBX equipment. Below are the key specifications, installation, operation, programming, and troubleshooting instructions.

1. Preparations 2. Description 3. Precautions 4. Specifications 5. Installation 6. Check Operation 7. Operating Features 8. Programming 9. Configuration 10. Troubleshooting

Preparations

Unpack the handset and ensure all components are present: cordless handset, handset battery (2.4V 550mAh Ni-MH), handset charging stand, power adapter (Input: 100-120V AC 60 Hz, Output: 6V DC @ 400mA). For battery installation: Pry open screw cover on handset back, remove screw, open cover, unplug old battery if present, plug new battery connector, place with "THIS SIDE UP" facing up, close cover and secure screw. Insert paperclip into ON pinhole to turn on handset. Charge for 16 hours initially in charging stand. Place away from water, heat sources, and interference. Requires qualified technician for full system setup with base (CTM-S2422).

WARNING! This product should be installed by a qualified technician. Connect only to host equipment, never directly to PSTN or POTS. Save these instructions.

Description

The VTech 2425 is a SIP cordless accessory handset for 2-line hotel systems, with features including speakerphone, dedicated LINE 1/2 keys, speed dial keys, VOLUME +/-, EMERGENCY/MESSAGES key, HOLD, MUTE, numeric dial keys, SPEAKER key. LEDs for message waiting and low battery. Charging stand has CHARGE LED. Compatible with CTM-S2422 base for up to 5 handsets. Supports hands-free operation, redial, flash for call waiting.

Applications: Hospitality SIP cordless expansion; 2-line hotel room phones.

Precautions

CAUTION! Install by qualified technician. Unplug before cleaning with damp cloth; avoid liquids. Place on stable surface; do not block vents.

WARNING! Do not use near water or in wet areas. Avoid heat sources; do not disassemble. Unplug if damaged or exposed to rain. Avoid use during storms. Do not use near gas leaks. Power adapters vertical or floor-mounted only. Use only supplied adapters and batteries; dispose per local regulations. Risk of explosion with incorrect batteries. Keep out of reach of children. Metallic objects away from earpiece.

Specifications

Installation

Plug power adapter into charging stand and unswitched outlet. Place handset in stand; CHARGE LED on. For base (CTM-S2422): Connect Cat-5 network cable to RJ-45 LAN port and PoE wall jack. Initialization: LEDs sequence; SPEAKER/MUTE flash on success. For wall mount: Rotate clip, align with wall plate, slide down. Battery: As in Preparations. Registration: Auto on cradle placement; confirmation tone. Deregistration: *331734# then HOLD. Voice Menu: Idle, TALK followed by Û Û Û Û for network/phone config (password 1234 for resets).

Check Operation

After charging, lift handset for dial tone (wait 1-2 sec). Test dialing, adjust volume. Verify CHARGE LED, low battery LED. Press FIND HANDSET on base to test paging (rings 60s). Check message waiting LED simulation. Switch between handset/base speakerphone.

Operating Features

Programming

Speed dials via web portal or voice menu (TALK Û Û Û Û > 4 Edit Speed Dial). Up to 4 locations on handset.

  1. Store Speed Dial: Voice menu option 4 > Select location > Enter number > Save.
  2. Dial Speed Dial: Press TALK then dedicated key.
  3. Edit: Voice menu > Edit location.
  4. Delete: Voice menu 3-2 Clear All (password 1234).

Phonebook: Integrated via speed dials; full via admin portal.

Configuration

Via voice menu (TALK Û Û Û Û) or web portal: Network, phone settings. Defaults marked by *.

SettingDefaultOptionsComments
Listening Volume - Handset41-6Adjust during call; Voice menu
Speakerphone Volume - Handset41-6Adjust during call
Ringer Volume - Base51-9Idle: VOL +/-
WAN Port TypeDHCPDHCP*/Static IPVoice menu 1-1
Subnet Mask255.255.255.0CustomVoice menu 1-2

Voice Menu Access: Idle handset > TALK > Û Û Û Û > Select option.

Troubleshooting

SymptomPossible CauseCorrective Action
No dial toneSIP unregistered.Check network cable/PoE; reboot; verify SIP credentials via web.
Handset not chargingContacts dirty.Clean charging poles; charge 16 hours; check adapter.
Low battery LED onBattery low.Charge 16 hours; replace with specified Ni-MH.
No ringVolume low.Adjust VOL +/- on base; check settings.
Poor audioRange/interference.Move closer; avoid electronics.
Registration failsBase mode issue.Long press FIND on base; place handset in cradle.

Care: Clean with damp cloth; store batteries removed if long unused.

VTech 2425 SIP Cordless 2-Line Hotel Telephone Manual© - All Rights Reserved 2025