iCrossway2
NTT TechnoCross Corporation
Softphone
Mobyx Solutions
Linphone
Belledonne communications
Cloud Softphone
Acrobits, s.r.o.
Bria Mobile : VoIP 電話 ソフトフォン
CounterPath Corp
Bria - VoIP SIP ソフトフォン
Zoiper IAX SIP VOIP Softphone
Securax LTD.
PortSIP Softphone
PortSIP
SessionTalk Pro Softphone
SessionTalk Ltd