Apps like ZoiPer Pro - SIP Softphone

Here are some great alternatives to ZoiPer Pro - SIP Softphone by Securax EOOD :
MizuDroid SIP VOIP Softphone
MizuDroid SIP VOIP Softphone
★4.1
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.4
Acrobits: VoIP SIP Softphone
Acrobits: VoIP SIP Softphone
★3.8
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.0
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1
Softphone
Softphone
★3.8
Voip By Antisip (+Video)
Voip By Antisip (+Video)
★3.7
AGEphone
AGEphone
★5.0
Sipnetic
Sipnetic
★4.0
VirtualPBX Softphone
VirtualPBX Softphone
★3.8
Mabrook Plazma
Mabrook Plazma
★3.5
REDCOM Sigma Client
REDCOM Sigma Client
★4.4
TeleVoIPs Softphone
TeleVoIPs Softphone
★3.8
VoIPstudio
VoIPstudio
★3.3
Cymbus (Legacy)
Cymbus (Legacy)
★4.3
MoSIP Mobile Dialer
MoSIP Mobile Dialer
★3.9