Apps like DFN VoIP-Centrex

Here are some great alternatives to DFN VoIP-Centrex by NFON AG :
AGEphone
AGEphone
★5.0
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.2
Samsung WE VoIP
Samsung WE VoIP
★4.0
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.5
voipoffice
voipoffice
★4.0
MobiCalls VOIP Calls
MobiCalls VOIP Calls
★3.8
Zoiper IAX SIP VOIP Softphone
Zoiper IAX SIP VOIP Softphone
★4.4
Sipnetic
Sipnetic
★3.9
Wildix Collaboration Mobile
Wildix Collaboration Mobile
★4.3
Voip By Antisip (+Video)
Voip By Antisip (+Video)
★3.8
007VoIP Cheap VoIP calls
007VoIP Cheap VoIP calls
★3.9
MoSIP Mobile Dialer
MoSIP Mobile Dialer
★3.8
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1
Yeastar Linkus Mobile Client
Yeastar Linkus Mobile Client
★3.9
Voiply Mobile: Calls & Text
Voiply Mobile: Calls & Text
★3.9
Rynga - Cheap Android Calls
Rynga - Cheap Android Calls
★4.6