Abto, LLC
Shareware
VoIP SIP SDK provides a powerful and highly customizable solution.
1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
VoIP Bookers
Freeware
VoIP Bookers offers you quality voIP and sip calls.
9
3CX System Ltd
30
Freeware
Be connected to all your contacts anyhwere anytime with 3CX VoIP Client.
3
Pacific Image Europe
2
Low Cost ... High Quality Phone Calls ... Easy to Use and Set Up.
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
Yasin KAPLAN
7
Freeware
TekPhone is a SIP VoIP Softphone that provides UA agent functions.
83
Peter Quiring
25
Open source
jphonelite is an open source Java SIP VoIP audio and video SoftPhone.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
FaxVoip Software
1
Shareware
Fax Voip T.38 Console - T.38 and Audio Fax over VoIP (SIP, H.323).
3
Octro, Inc.
62
Shareware
OctroTalk is an integrated instant messaging application VoIP call, SIP call etc.
3
AdoreSoftphone
208
Demo
A basic SIP Softphone that allows to connect to VoIP PBX and providers.
15
Linphone
2,570
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
ZeeVoice
17
Freeware
A sip softphone for making and receiving VoIP calls.
11
PortSIP Solutions, Inc.
82
Freeware
PortGo is the newest SIP softphone from PortSIP, it's built base on PortSIP VoIP.
