MizuDroid SIP VOIP Softphone

Mizutech

About this app

MizuDroid is a free, unlocked, professional SIP softphone to be used with any SIP server / any VoIP provider. No ads.

The app doesn't include any VoIP service. You are free to configure it to be used with any SIP server or service provider.

Note1: You will need to have a SIP account to be able to use this softphone and calls to mobile/landline phones might cost you money. See your VoIP service provider for the exact terms and pricing.

Note2: The softphone service might try to run in the background and request to ignore battery optimizations only if push notifications are impossible in your network, for example if your SIP server is on private IP and doesn't support push notifications.

-The VoIP phone can be used with any VoIP service provider, any softswitch or PBX, including Asterisk, voipswitch, 3CX, Cisco, FreePBX, Elastix, OpenSIPS and others.
-Compatible with all IP phones and SIP dialers such as Acrobits, Bria, Linphone, Zoiper or CSipSimple
-Works on any network above 12 kbits (3G, 4G, LTE, 5G, WiFi, others).
-Not another csipsimple/sipdroid clone (SIP client stack made by Mizutech from scratch based on Mizutech AJVoIP SIP and media stack for Java)
-Free for non-commercial usage. No advertisements.

FEATURES:
-Auto adapt to your environment (device/CPU/network/server and peers capabilities)
-Minimal CPU and battery usage. App file size is below 10 MB and contains all SIP signaling and media features.
-Multiple SIP accounts (Advanced settings -> SIP settings -> Accounts)
-Multiple lines (simultaneous calls)
-Push notification support direct to SIP server or via FCM
-Call divert: mute/hold/forward/transfer/conference
-HD Audio, wideband and all common audio codec: Opus, Speex, G.729, GSM, iLBC, G.711 (PCMU/PCMA),
-Improved audio quality: AGC, AEC, PLC, noise reduction, silence suppression
-NAT/firewall traverse capabilities (with STUN, ICE, tunnel and related technologies)
-IM (chat), file transfer, video, DTMF (RFC2833, SIP INFO and in-band), Voicemail, Voice recording, Balance display, Caller ID, Number rewrite rules
-Transport protocols: IPv4/IPv6, UDP/TCP/TLS. Support for DNS SRV
-VoIP tunneling and encryption (optional/automatic) with auto transport selection: UDP/TCP/TLS/HTTP/VPN (VoIP over HTTP)
-Peer to peer direct encrypted VoIP media (whenever possible between MizuDroid apps)
-Call recording
-Presence, BLF, contacts sync
-Integration with the native contact list
-Handle incoming calls while in idle/sleep/doze (with push notifications or running as service if push is unavailable)
...and many more

Branded softphone builds with customizations are available for VoIP service providers and companies.
Contact [e-mail].
Details: https://www.mizu-voip.com/Support/Wiki/tabid/99/topic/Customized%20Android%20softphone/Default.aspx

Use the forum to submit any bug reports or suggestions:
https://www.mizu-voip.com/forums/forums/softphone_forum/

Softphone user guide:
https://www.mizu-voip.com/Portals/0/Files/Android_Softphone_Guide.pdf

Visit the homepage for more details about this SIP client:
https://www.mizu-voip.com/Software/Softphones/AndroidSoftphone.aspx

Ratings and reviews

An incredibly unintuitive SIP client. Coming from CSipSimple and Zoiper, I found adding accounts extremely frustrating and complicated. With so many extra options, you would think the settings should not lack anything. Yet, I am still unable to find the "Authentication User" settings. Disappointing. Update: It must be incredibly difficult to get the app right. Toggling between different accounts will eventually lead to one of them being chosen as the main one. No way to switch to a different one after that, even when you try to delete the one set up (unless you uninstall the app and start from scratch !) The push is a hit and miss. Will only use for outbound calling.

Complete waste of time for multiple accounts. If you go into advanced and click on accounts, it says there are no accounts. Cannot add another account even though they claim it supports multiple accounts. Junk.

Mi A2-lite. Android One (Q} Works fine with one sip account. If you have two providers it switches accounts around. Both may initially work but eventually an account stops working. I've uninstalled and reinstalled several times and still have the same problem. I think there is a config file/folder that needs to be deleted but I can't find it. App has a boat load of settings but navigation is a bit confusing. 3.5 stars.

What’s new

Support for latest Android, multiple SIP accounts, G.729 fix, improved performance, improved OPUS, better audio quality and many more.
More details here: https://www.mizu-voip.com/Support/Wiki/tabid/99/Default.aspx?topic=Android+softphone+development