We don't have synonyms for landlines yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are handline, landline and landmines.
(n) :
(by extension) A telephone connected by such a fixed wire that allows multiple phones to operate simultaneously on the same phone number, specifically not wireless/mobile.
(n) :
A fixed telephone communications cable; originally, one run over land, as opposed to a submarine cable.
(n) :
(attributively) That which is connected by such a fixed wire (telephone, internet etc.).
(n) :
(by extension) A telephone connected by such a fixed wire that allows multiple phones to operate simultaneously on the same phone number, specifically not wireless/mobile.
(n) :
A fixed telephone communications cable; originally, one run over land, as opposed to a submarine cable.
(n) :
(attributively) That which is connected by such a fixed wire (telephone, internet etc.).