MizuDroid is a free, unlocked, professional SIP/VoIP softphone from Mizutech.
Note: You 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 service provider for the exact terms and pricing.
-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 15 kbits (3G, 4G, LTE, WiFi, others).
-Not another csipsimple/sipdroid clone (SIP client stack made by Mizutech from scratch based on Mizutech compact Java SIP and media stack)
-Free for non-commercial usage. No advertisements.
-Auto adapt to your environment (device/CPU/network/server and peers capabilities)
-Minimal CPU and battery usage. Size is below 4 MB and contains all SIP signaling and media features.
-Multiple SIP accounts (from advanced settings -> general settings), native call integration (optional)
-Call divert: mute/hold/forward/transfer/conference
-HD Audio, wideband and all common audio codec: G.711 (PCMU/PCMA), GSM, speex, iLBC, G.729
-Enchanted audio quality: AGC, AEC, PLC, noise reduction, silence suppression
-NAT/firewall traverse capabilities (with STUN, ICE, tunnel and related technologies)
-IM (chat), DTMF (RFC2833 and SIP INFO), Voicemail, Voice recording, Balance display, Caller ID
-Transport protocols: 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)
-Call recording and file transfer
-Contact sync and presence
-Peer to peer encrypted VoIP media
-VoIP to native dialer integration and integration with the native contact list
...and many more
Branded softphone builds with customizations are available for VoIP service providers and companies.
Use the forum to submit any bug reports or suggestions:
Visit the homepage for more details about this SIP client: