yes, there is....Uniden!!!
Use your cell phone minutes on your land line? Now you can with the feature-loaded Uniden ELBT595 5.8 GHz 1-Line Digital Expandable Phone with Bluetooth® capability! In addition to allowing you to make crystal-clear cordless land-line calls throughout your home or office, the Uniden ELBT595 also lets you link your Bluetooth cell phone with its base station and use the handset to tap into your cell phone minutes! This amazing system also lets you pair your wireless Bluetooth headset to the handset for hands-free convenience.
* Expandable up to 10 handsets — allows you to have multiple cordless handsets wherever you need them using a single phone jack!
* Bluetooth® compatible — lets you communicate with either a Bluetooth-enabled cell phone and/or wireless headset.
* Digital answering system — utilizes microchip technology to ensure clearer recordings and longer life.
* Caller ID*/Call Waiting Deluxe — includes distinctive Caller ID indicators, recordable/pre-set customer ringers and downloadable/pre-set picture displays.
* 100 Caller ID/100 phonebook names/400 numbers — allows you to store up to 100 Caller ID numbers plus up to 100 names and 400 numbers in the handset, with such advanced options as alpha sort, group sort, and multiple numbers per name.
* USB connector with downloadable software included — lets you use your PC to edit your phonebook, upload photos and ring tones, download schedule reminders, and even import contacts from Microsoft® Outlook®.
* Plus — includes 20 pre-set ring tones, handset-to-handset memory transfer, handset mute & hold functions, last 20 number redial, DirectLink™ Mode for 2-way radio communication between handsets, and more.
also, check amazon.com has a sale on them!!!