OnSIP
PortSIP Softphone
PortSIP
Linphone
Belledonne communications
Sipnetic
IPTON
Bria - VoIP SIP 軟體電話
CounterPath Corp
Skype
jiPBX - SIP VOIP Softphone
jiWeb Technologies LLP
MobileVOIP international calls
Finarea
Whoscall 反詐騙騷擾來電辨識
Gogolook
Bria Mobile: VoIP SIP 通信网络电话