The Sipdex Talk softphone is works with sipdex IPPBX System.
SipdexTalk Softphone support push notification, which allows it receive calls even it was force terminated.
Please note some mobile network operators prohibit or restrict the use of VoIP over their networks and may impose additional fees or other charges. Please check with your operator before making calls over LTE networks.
Sipdex Talk Softphone APP features:
– Autoconfiguration on QR code scanning
– CallKit Support
– Supports making SIP VoIP calls over LTE and WiFi
– Incoming Calls via Push Notifications
– Bluetooth Support
– Excellent audio quality
– Speakerphone, Mute ,transfer and Hold
– DTMF Support
– Opus, G711 ,GSM and speex codec support
Softphone – Sipdextalk for Android
http://sipdex.com/SipdexTalk1.1.0.apk
Softphone – Sipdextalk for IPhone
https://apps.apple.com/gb/app/sipdex-talk/id1476684092?l=zh