Zoiper IAX SIP VOIP Softphone

Securax EOOD

In-app purchases

About this app

Zoiper is a reliable and battery-friendly VoIP softphone that lets you make high-quality voice calls over Wi-Fi, 3G, 4G/LTE, or 5G networks. Whether you’re a remote worker, digital nomad, or VoIP enthusiast, Zoiper is the go-to SIP client for smooth and secure communication — without any ads.

🔑 Core Features:
📞 Supports both SIP and IAX protocols

🔋 Low battery usage with excellent stability

🎧 Bluetooth, speakerphone, mute, hold

🎙️ HD audio quality — even on older devices

🎚️ Wideband audio support (including G.711, GSM, iLBC, Speex)

📹 Video calls (*with subscription)

🔐 Secure calls with ZRTP and TLS (*with subscription)

🔁 Call transfer & call waiting (*with subscription)

🎼 G.729 and H.264 codecs (*with subscription)

🔲 Multiple SIP accounts for flexibility (*with subscription)

🎤 Call Recording (*with subscription)

🎙️ Conference Calls (*with subscription)

📨 Presence support (see if contacts are available or busy)(*with subscription)

🔄 Auto Answer for automatic pick-up of incoming calls (*with subscription)

📲 Reliable incoming calls with PUSH service (ensure calls are received even when app is in background) (*with subscription)

📊 Quality of Service (QoS) / DSCP support for better call quality in enterprise environments (*with subscription)

📞 Message Waiting Indicator (MWI) for voicemail notifications (*with subscription)

📲 Need reliable incoming calls at all times?
Subscribe to Zoiper's PUSH service from within the app. This optional paid feature ensures you receive calls even when the app is closed — perfect for professionals and frequent travelers.

🔧 For Providers & Developers

Distribute easily via oem.zoiper.com with automatic provisioning
Need a custom-branded version or VoIP SDK? Visit https://www.zoiper.com/en/voip-softphone/whitelabel or zoiper.com/voip-sdk
⚠️ Please Note

Zoiper is a standalone VoIP softphone and does not include a calling service. You must have a SIP or IAX account with a VoIP provider.
Do not use Zoiper as your default dialer; it may interfere with emergency calls (e.g. 911).
Only download from Google Play — unofficial APKs may be unsafe.

Ratings and reviews

I've run Zoiper on Windows and Android with both FreePBX with pretty good results. It's easy to setup, responsive, and isn't a terrible battery hog. It handles hand-off (Wifi to Cellular) pretty gracefully while on a call and supports a wide range of codecs. I briefly trialed the Sibscription version only to be told the features I wanted/needed were only available with an ADDITIONAL premium subscription. I went back to FREE. I had to un/reinstall after the trial to get it working again.

Best App for communication in the world. It's helpful

App Just won't stay connected. it will keep getting stuck saying "registering". This happens on a daily basis, tried 3 different phones. Note II cannot answer calls either as it doesn't pop up when it rings, and I have to try and find it under notifications before it rings off. Support IS non existent, I have been emailing them at the address they mention below for over 6 months but they just ignore all my emails.

What’s new

v2.26.13
Edge to Edge improvements
Add "SIP Preconditions" for accounts(disabled by default)
Crash fixes