Does the newer land-line multiple wireless phone's have router's in the main set?

Question

Does the newer land-line multiple wireless phone's have router's in the main set?

Answer 1

To answer your question accurately, some assumptions have to be made (unless you clarify otherwise).

I will assume you are referring to standard PSTN (public switched telephone network) home phones that have the new DECT (digitally enchanced cordless telecommunications) cordless functionality.

I will also assume there is only 1 active PSTN phone line coming into the house.

I will assume you are not including phone systems that have PBX functionality (typically for businesses).

I will also assume you are Not referring to phones that are VoIP capable, wireless or not.

To the best I can find out, DECT phones do not actually "route" calls to the multiple handsets registered with a home phone base unit.  In reality, they don't route calls anymore than the old cordless phones did.  

The calls are essentially "broadcast" to all the cordless phones "registered" to the base simultaneously.  Thus, by virtue of the call being "broadcast" vs "routed", any or all of the cordless handsets can pickup the call (and thus have 3-way conversations, if desired).

Because PSTN phone calls are not carried over Internet there is no need for "routers" or "firewalls", or virus protection, etc.

That said, there are phones now that are "dual function", meaning that they are capable of handling calls from both Internet (VoIP) and landline (PSTN).

In this case, the PSTN calls are completely independent of the VoIP calls.  

But because the VoIP calls originate and terminate over Internet, the ethernet line feeding into your dual-function phone will "typically" need to be behind a NAT router/firewall.

In this case the VoIP data is essentially "routed" to your IP phone portion of the dual-function phone.  But, the multiple cordless handsets registered to the base unit are not getting routed to them - it is being "broadcast" to them.

If I am wrong in my assesment, can someone please post references that clearly indicate otherwise.

Answer 2

yes, the main base-phone has a build-in router and firewall....! so it can talk to the 6-10 extensions you got around your house....