15. VoIP Providers

Content

Tested VoIP Providers

Used Symbols

Tested VoIP Providers

Logo	Company	Interoperability
	O2 Czech Republic a.s.
	iptel.org
	Draytel.org
	RingCentral
	UPC Česká Republika s.r.o.

Used Symbols

 - Compatible

 - Work with limitation

 - Incompatible