PortSIP Softphone
PortSIP
Softphone
Vtel
Mobyx Solutions
Cloud Softphone
Acrobits, s.r.o.
SessionTalk Softphone
SessionTalk Ltd
VirtualPBX Softphone
VirtualPBX.com, Inc.
Intermedia softphone
Intermedia.net, Inc.
SessionCloud SIP Softphone
Zoiper IAX SIP VOIP Softphone
Securax EOOD
Sipnetic
IPTON