Your extension, in your pocket
Same number, same phone system โ on the phone you already carry. Calls in and out, every recording and transcript, and the messages your digital secretary took while you were busy.
What the app does
Calls both ways
Answer and dial from your extension โ showing the business number, not your personal one.
Recordings and transcripts
Every call is kept and transcribed. Search a word, land on the moment it was said.
Messages from the secretary
Who called, why, what number to call back and how urgent โ with the recording underneath.
An "unavailable" switch
One tap and every call goes to the digital secretary without ringing you.
Balance on the dialer
See the credit you have left before you dial, not after a call fails.
Your contacts
Identifies the caller from the phone contacts and from your CRM.
Why this is not just another softphone
Most SIP apps are a pipe: they carry the call and stop there. What they do not solve is everything around the call โ who rang while you could not answer, what was said two weeks ago, and who you have to get back to today.
This app sits on the phone system itself, so it knows all of that. The recording, the transcript, the message the secretary took and the history with that customer are on the same screen where you answer the call.
And it is built to work while nobody is looking at it: an incoming call comes up over whatever is open, with a ringtone, even on a locked screen. A business app that misses calls is not a business app.
- Your business number, on mobile
- Recording and transcript for every call, in and out
- Secretary messages with reason and urgency
- Moves between WiFi and cellular without losing registration
FAQ
How do I install it?+
Direct download from this site. Android will ask you to allow installation from outside the store โ that is normal for a business app not yet listed.
Is there an iPhone version?+
The app is built from the same code for iPhone as well, and it is not yet available to download. We will update this page when it is.
Does it replace my personal number?+
No. The app is a separate extension โ business calls go out with the business number and your personal mobile stays personal.
Do I have to be a CALLSAI customer?+
For this app, yes โ it connects to your account here. If you want a standalone softphone for any phone system, we have a separate desktop dialer.
What about battery?+
The app stays registered in the background so you can receive calls, and is tuned not to drain the battery โ it is a light background service, not an open call.
Download it and start talking
Open an account, add credit, and start talking โ with AI that works from minute one.
ืืจืกืช ืืืืคืื ืืื ืืื โ ื ืขืืื ืืฉืชืืื ืืืื ื.
SHA-256: 9e7df860de0d38189bc7dc87da5f5114ec06d6c547beca793b04cd0deb9b5bb2