Apps like NFON X powered by Telekom

Here are some great alternatives to NFON X powered by Telekom by NFON AG :
Telekom MK
Telekom MK
★3.7
ZDialer by Zoho Voice
ZDialer by Zoho Voice
★4.1
NHC Mobile
NHC Mobile
★3.6
RCN Business Office Mobility
RCN Business Office Mobility
★4.3
MightyCall Mobile
MightyCall Mobile
★3.3
Ooma Enterprise
Ooma Enterprise
★3.7
Nextiva App
Nextiva App
★3.5
MTT Business — IP phone
MTT Business — IP phone
★3.6
Medtel Cloud
Medtel Cloud
★3.8
Telzio
Telzio
★3.8
Textr Team: 2nd Business Phone
Textr Team: 2nd Business Phone
★3.5
Central Office
Central Office
★3.6
magicJack for BUSINESS
magicJack for BUSINESS
★4.0
Connect Me
Connect Me
★4.5
GoTo
GoTo
★4.8
FSN 2GO
FSN 2GO
★4.4