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VTech VSP600 Telephone Manual

Setup, everyday use, maintenance and troubleshooting for the VoIP cordless phone system, with verified specifications.

  • TypeVoIP Cordless Phone
  • LineVoIP (IP network)
  • Standby power1.01 W
  • Est. yearly cost$1.50

About the VTech VSP600

VTech model VSP600 is a VoIP cordless phone system that meets ENERGY STAR telephony requirements.

It connects to your network as a Voice over IP (VoIP) endpoint rather than to an analog phone line. It can be powered over the network cable as a PoE Class 2 device, with an optional AC adapter where PoE is not available.

Measured standby power is 1.01 W — about 8.85 kWh or $1.50 a year if it stays plugged in around the clock, as phones normally do. That is lower than 53% of the 37 telephone models in our database.

Specifications

BrandVTech
Model numberVSP600
Phone typeVoIP Cordless Phone
Line technologyVoIP
ConfigurationCordless
Power over Ethernet class2
External power adapterOptional
Standby (idle) power1.01 W
Off-mode power0.00 W

Safety information

  • Use only the power adapter and battery pack supplied with the phone or exact replacements from the manufacturer.
  • Do not use the phone near water — for example near a bathtub, sink or swimming pool — and never handle it with wet hands.
  • Avoid using any phone connected to outdoor wiring during a thunderstorm.
  • Do not use the phone to report a gas leak while you are near the leak. Leave the area first.
  • Use only the rechargeable battery type specified for the handset. Never install non-rechargeable (alkaline) batteries, and do not dispose of batteries in a fire; recycle them according to local rules.
  • A VoIP phone works only when its network, power source (PoE switch or adapter) and phone service are up. Keep an alternative way to call 911 during outages.

Setup

  1. Connect to the network

    Connect the phone's LAN port to a network switch port with an Ethernet cable. If the switch provides PoE, the phone powers up from the cable. As a Class 2 device it can draw up to about 6.49 W, so budget at least that much per port on the switch. Where PoE is not available, use the manufacturer's AC adapter instead.

  2. Provision the phone

    Most business VoIP phones are configured automatically from the phone system or by your administrator. For manual setup, enter the SIP account, server and credentials from your service provider in the phone's web interface.

  3. Charge and register handsets

    Charge each handset fully, then register it to the base station following the manual or the base's web interface.

Using your phone

Calls and audio

  • Adjust the earpiece or speaker volume during a call with the volume keys; the setting is usually remembered for the next call.
  • Call quality on VoIP depends on the network. If voices break up, ask your administrator to prioritize voice traffic (QoS) or use a wired connection.
  • Return the handset to its charger after calls so it stays charged.

Handset battery care

Leaving the handset in the charger does not harm modern battery packs. If talk time drops noticeably, clean the charging contacts and, if needed, replace the battery with the type specified by the manufacturer. Remove the battery if the handset will be stored for several months.

Range and interference

Walls, floors, metal cabinets and appliances reduce range. If calls crackle or drop near the edge of range, move closer to the base or relocate the base to a higher, more central position.

Power use

Phones stay powered all the time, so standby power is what matters. This model draws 1.01 W when idle. On PoE, the switch supplies this power, and switch conversion losses add slightly to the total.

Care and maintenance

WhenWhat to do
WeeklyWipe the handset, keypad and display with a soft cloth lightly dampened with water or a mild disinfectant wipe; do not spray liquids directly on the phone or use solvents.
MonthlyClean the charging contacts on the handset and charger with a dry cloth or pencil eraser to ensure reliable charging.
Every 6 monthsCheck cords and plugs for damage, and confirm the phone is running the firmware version your administrator or provider recommends.
When talk time dropsReplace the handset battery pack with the type specified by the manufacturer.

Troubleshooting

Try these steps before calling for service. For model-specific error messages, consult the manufacturer's manual or your phone system administrator.

ProblemPossible causeWhat to try
Phone does not power onSwitch port not providing PoE or insufficient power budget; damaged cable.Try another PoE port or a known-good cable, and confirm the switch can supply Class 2 power; otherwise use the AC adapter if available.
"No service" or registration failedNetwork or VLAN settings; provisioning error; account not active.Restart the phone, confirm it obtains an IP address, and ask your administrator or provider to verify the account and provisioning.
Choppy audio, echo or one-way audioNetwork congestion; firewall/NAT settings; Wi-Fi interference.Use a wired connection, enable QoS for voice, and have the administrator check firewall SIP and RTP settings.
Handset shows "Searching" or "Out of range"Base unpowered; handset too far away; handset not registered.Check base power, move closer, and re-register the handset to the base following the manual.
Battery runs down quicklyWorn battery pack; dirty charging contacts; handset not seated in charger.Clean the contacts, check that the charge indicator lights, and replace the battery pack if needed.
Display or keys unresponsiveTemporary software fault.Restart the phone by unplugging and reconnecting the network cable.

Energy use and running costs

The VTech VSP600 draws 1.01 W in standby — the idle state it spends nearly all of its time in, measured with the handset charged and docked. Plugged in 24 hours a day, 365 days a year, that is about 8.85 kWh per year, or $1.50 at $0.17 per kWh.

As a PoE Class 2 device, the phone can draw up to 6.49 W at peak (for example with the backlight on or during a call on speaker), though typical idle draw is the 1.01 W measured above. The switch's own losses come on top of this.

Talk time adds very little energy compared with standby, because calls are short relative to the hours the phone sits idle.

Frequently asked questions

What kind of phone is the VTech VSP600?

It is a VoIP cordless phone system.

How much electricity does the VTech VSP600 use?

It draws 1.01 W in standby, about 8.85 kWh per year — roughly $1.50 at $0.17/kWh if left on continuously.

Can the VTech VSP600 be powered over Ethernet?

Yes. It is a PoE Class 2 device, so an IEEE 802.3af/at switch or injector can power it over the network cable; an AC adapter is optional.

Will the VTech VSP600 work during a power outage?

Only if the network equipment and PoE switch are on backup power and your phone service is up. Keep another way to call 911.

Is the VTech VSP600 ENERGY STAR certified?

Yes. It is on the ENERGY STAR certified telephony list, with a certification date of October 2015.

Sources and disclaimer

Specifications on this page come from the ENERGY STAR certified telephones dataset published by the U.S. Environmental Protection Agency (record certified October 14, 2015), retrieved October 7, 2026.

The setup, operating, maintenance and troubleshooting guidance is written by ManualHarbor's editors for this specific product type and configuration. It is an independent guide — not a reproduction of the manufacturer's manual — and ManualHarbor is not affiliated with VTech. Always follow the safety instructions, installation requirements and warranty terms supplied with your unit, and contact VTech or an authorized service provider for warranty repairs and replacement parts.

Running-cost figures use assumed U.S. average utility prices and are estimates for comparison only. See our editorial methodology for details.