extension phone

Also found in: Dictionary, Wikipedia.
Related to extension phone: telephone extension
  • noun

Synonyms for extension phone

an additional telephone set that is connected to the same telephone line

References in periodicals archive ?
84) It is likely the extension phone exemption is also applicable where a family member listens to a conversation to protect another family member against harm.
Gigaset 4200: Cordless handset/charger extension phone with GigaVoice
KDDI's E02SA, planned for launch in July 2006, enables enterprise users to build an efficient network with a single handset, as it functions as a VoIP extension phone equipped with wireless LAN in the office, as well as an "au" mobile phone outside the office.
Whether it is across the room, across town or halfway around the globe, SoftGnome(TM) lets the PhoneGnome(TM) owner use their home telephone service just as if they were using an extension phone at home.
However, if consumers had a regular network phone in their home, even as an extension phone in a bedroom, perhaps, that phone would have continued working fine.
Claritel users will realize the unit's single number portability from multiple devices; users of the Claritel i750 and Softphone will find they can have the same phone number available from multiple devices, including: access to telephone services from the same extension phone number as from their desk phone.
ESI's Remote IP Feature Phone is identical in appearance and functionality to ESI's traditional in-office extension phone sets.
Extension phone mode allows the connection of a standard telephone set to a payphone for sites requiring a "house" phone for employees and a payphone for customers.
Never send your phone to be counterfeited as an extension phone --
Gone are the days of wiring each room for an extension phone and yelling down the hallway for someone to pick-up a call.
Auto Extension Disconnect: Busy households will find this function useful, as it automatically stops the answering machine when a call is answered from an extension phone.
On either line, users can talk hands-free and place calls on hold using the two-line speakerphone with "true hold," which automatically releases a call when an extension phone is picked up.
If a user wishes to continue a voice conversation from another extension phone, the hold function will release automatically.
The CP-760 also provides "True Hold," which enables you to automatically take a call off hold when an extension phone is picked up.
Connected extension phones can dial calls over the Internet or the fixed line.