“Is this phone compatible with a traditional land line? Also, can the base model (KX-TGW420) & the accessory model 9KX-TGWA40) be programmed to communicate with each other? We need at least 3 phones to use with an intercom and 3 phone line system.”
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Hi there! Yes, this phone is compatible with a traditional landline. Additionally, the base model (KX-TGW420) and the accessory model (KX-TGWA40) can be programmed to communicate with each other. You can connect up to 9 accessories desk stands/handsets to the main unit. - S
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