Android phones won't do that, they are a handset on their own and have no POTS interface. Bluetooth will also not help you to connect to Asterisk. Asterisk is a SIP server and does not allow Android handsets to pair via bluetooth for calls (that's solely for using bluetooth enabled phones as FX0/FXS channels for faxing/making calls).

BaseColumns; CalendarContract.AttendeesColumns; CalendarContract.CalendarAlertsColumns; CalendarContract.CalendarCacheColumns; CalendarContract.CalendarColumns Nov 28, 2018 · Well, SIP Calling finally seems to be working better in Android 6.0! Utilizing the integrated dialer in Android makes for a smoother user experience vs. changing back and forth between the dialer and a softphone dialer. Configuring SIP on Android 6.0 and later. Find and launch the dialer on your phone: Freier SIP/VoIP-Client Wenn Sie über die Standard-Kontakte-App anrufen, verbindet Sipdroid Sie per Voice-over-IP. Sie können in den Einstellung festlegen, unter welchen Bedingungen (Wifi, Vorwahl) VoIP oder Standard-Telefon-Anrufe getätigt werden sollen. Weitere Infos finden Sie auf sipdroid.org Für optimale Leistung können Sie sich gratis eine virtuelle VoIP-Telefonanlage bei pbxes.de Bria softphone is a SIP-based phone for Android phones that uses a Wi-Fi or 3G connection to make and receive calls. Using Android phone's existing contact list, Bria Android Edition facilitates easy and effective communication management with an intuitive interface that accommodates multiple calls. Dec 01, 2013 · The customer’s IP enabled phones connect to the Internet and ultimately to the vendor’s servers and software. This, however is just one type of VoIP deployment. SIP trunking delivers telephone services and unified communications to customers with SIP-enabled PBX and unified communications solutions. Jan 02, 2020 · If you’re concerned most about what your phone costs, you’ll probably choose Android. That’s because there are many Android phones that can be had for cheap, or even free. Apple's cheapest phone is the iPhone SE, which starts at $349.

The Yealink SIP-T58A is a simple-to-use smart media phone that provides an enriched HD audio and video calling experience for business professionals. Based on Android 5.1.1 operating system, the SIP-T58A features a seven-inch adjustable multi-point touch screen, a removable two-megapixel HD camera CAM50, integrated Wi-Fi and Bluetooth4.0+ EDR.

Android phones won't do that, they are a handset on their own and have no POTS interface. Bluetooth will also not help you to connect to Asterisk. Asterisk is a SIP server and does not allow Android handsets to pair via bluetooth for calls (that's solely for using bluetooth enabled phones as FX0/FXS channels for faxing/making calls). MicroSIP is a portable SIP softphone based on the PJSIP stack available for Microsoft Windows operating systems. It facilitates high quality VoIP calls (p2p or on regular telephones) based on the open SIP protocol. BaseColumns; CalendarContract.AttendeesColumns; CalendarContract.CalendarAlertsColumns; CalendarContract.CalendarCacheColumns; CalendarContract.CalendarColumns

You need to have unlocked Android 2.3 or 4.0 version on your phone to use native Android SIP client. Some of the Android phones with 2.3 or 4.0 version on the market are; - Google Nexus phones

MicroSIP is a portable SIP softphone based on the PJSIP stack available for Microsoft Windows operating systems. It facilitates high quality VoIP calls (p2p or on regular telephones) based on the open SIP protocol. BaseColumns; CalendarContract.AttendeesColumns; CalendarContract.CalendarAlertsColumns; CalendarContract.CalendarCacheColumns; CalendarContract.CalendarColumns Nov 28, 2018 · Well, SIP Calling finally seems to be working better in Android 6.0! Utilizing the integrated dialer in Android makes for a smoother user experience vs. changing back and forth between the dialer and a softphone dialer. Configuring SIP on Android 6.0 and later. Find and launch the dialer on your phone: Freier SIP/VoIP-Client Wenn Sie über die Standard-Kontakte-App anrufen, verbindet Sipdroid Sie per Voice-over-IP. Sie können in den Einstellung festlegen, unter welchen Bedingungen (Wifi, Vorwahl) VoIP oder Standard-Telefon-Anrufe getätigt werden sollen. Weitere Infos finden Sie auf sipdroid.org Für optimale Leistung können Sie sich gratis eine virtuelle VoIP-Telefonanlage bei pbxes.de Bria softphone is a SIP-based phone for Android phones that uses a Wi-Fi or 3G connection to make and receive calls. Using Android phone's existing contact list, Bria Android Edition facilitates easy and effective communication management with an intuitive interface that accommodates multiple calls.