need a new landline phone with wireless headset, Caller ID, etc.

 

setting up my Vonage account at home, have router & account

 

can you recommend best shop for landline phones?  thanks!

Wireless headset or handset?  There really are not many landline phones being sold these days so maybe Lazada would be an option.  I bought a wireless handset type and standard phone from Tesco/Lotus recently but not much selection.  

 OP, you appear to be mixing technologies. A landline phone is made to operate on the PSTN (Public switched telephone network), DTMF signaling, DC loop out ring in, caller ID from the network etc and Vonage is a voice over IP network, computer to computer smartphone or app etc. Voice over IP will work with your smartphone and its headset.

Some VOIP providers may offer a specific router that lets you plug in a old PSTN telephone (Via an Analoge Telephone Adaptor) but it will not have any features like bluetooth for a wireless headset or calling party ID etc. Its really an old stop gap measure used during the transition from PSTN to VOIP.