Apps like SpectrumVoIP ES

Here are some great alternatives to SpectrumVoIP ES by SpectrumVoIP Developer :
MobiCalls VOIP Calls
MobiCalls VOIP Calls
★4.4
HelloSpoke Mobile
HelloSpoke Mobile
★4.0
Fast Call
Fast Call
★4.1
Anywhere Connect
Anywhere Connect
★3.4
Nonoh - Frugal calls
Nonoh - Frugal calls
★4.5
TeleConsole
TeleConsole
★4.1
12Voip
12Voip
★4.4
OneSim VoIP
OneSim VoIP
★3.3
voipoffice
voipoffice
★4.0
SessionTalk Softphone
SessionTalk Softphone
★3.5
Vodia Phone
Vodia Phone
★3.7
Wildix Collaboration Mobile
Wildix Collaboration Mobile
★4.4
SessionCloud SIP Softphone
SessionCloud SIP Softphone
★3.6
Vonage Home Extensions - VoIP
Vonage Home Extensions - VoIP
★3.9
VirtualPBX Softphone
VirtualPBX Softphone
★3.9
inexPHONE
inexPHONE
★4.1