Apps like VirtualPBX Softphone

Here are some great alternatives to VirtualPBX Softphone by VirtualPBX.com, Inc. :
Zoiper IAX SIP VOIP Softphone
Zoiper IAX SIP VOIP Softphone
★4.4
voipoffice
voipoffice
★4.0
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.0
101VOICE Mobile SoftPhone
101VOICE Mobile SoftPhone
★4.5
Softphone
Softphone
★3.8
TeleVoIPs Softphone
TeleVoIPs Softphone
★3.8
SessionTalk Softphone
SessionTalk Softphone
★3.5
SessionTalk Pro Softphone
SessionTalk Pro Softphone
★3.2
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.4
SessionCloud SIP Softphone
SessionCloud SIP Softphone
★3.6
OneCloud
OneCloud
★4.1
NimbusPhone
NimbusPhone
★3.5
Voiply Mobile: Calls & Text
Voiply Mobile: Calls & Text
★3.8
Acrobits: VoIP SIP Softphone
Acrobits: VoIP SIP Softphone
★3.8
Unity-Mobile
Unity-Mobile
★3.6
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1