Bart Coninckx wrote:
I understand smartphones is not a good option, but what about these WiFi
SIP phones?

I thing smartfones simply lack a business grade softhone implementation.

WiFi SIP phones share some problem with smartphones: battery runtime and, most important, roaming and handover.

In WiFi network handling roaming/handover is up to the client, this is the same kind of problem that arises in mobile WiFi POS systems. Compared to DECT standard which implements roaming/handover this is a major drawback.

Implementing a proper roaming/handover in WiFi networks, using wireless controllers and suitable access points, is very expensive. Where such expensive WiFi infrastructure have to be built only to properly serve wireless phones a DECT multicell system is definitely a winner considering coverage, features and battery runtime.

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