Apps like SessionTalk Pro Softphone

Here are some great alternatives to SessionTalk Pro Softphone by SessionTalk Ltd :
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.5
Acrobits: VoIP SIP Softphone
Acrobits: VoIP SIP Softphone
★3.6
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.0
MizuDroid SIP VOIP Softphone
MizuDroid SIP VOIP Softphone
★4.0
AGEphone
AGEphone
★5.0
Zoiper IAX SIP VOIP Softphone
Zoiper IAX SIP VOIP Softphone
★4.4
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1
PortSIP Softphone
PortSIP Softphone
★3.7
Sipnetic
Sipnetic
★3.9
REDCOM Sigma Client
REDCOM Sigma Client
★4.4
Teo Softphone for Android
Teo Softphone for Android
★4.8
Voip By Antisip (+Video)
Voip By Antisip (+Video)
★3.7
Connect.US
Connect.US
★4.2
Mabrook Plazma
Mabrook Plazma
★3.5
VirtualPBX Softphone
VirtualPBX Softphone
★3.8
Vibervoiz MoSIP
Vibervoiz MoSIP
★4.4