This list is checked against the current Mac and iPhone apps. If a feature is not here, SIPdia does not do it yet.

Shown with demo accounts and sample numbers.
Register several SIP accounts at once and pick which one each call goes out from.
Mac, iPhone and iPad
DetailsEncrypt SIP signaling with TLS and call audio with SRTP when your server supports them.
Mac, iPhone and iPad
DetailsRecord a call to a WAV file stored on your own device.
Mac, iPhone and iPad
DetailsTurn forwarding and DND on or off at the PBX through feature codes, so they work when the app is closed.
Mac, iPhone and iPad
Save contacts with photos, favorites and notes. They sync to your Mac, iPhone and iPad, and calls and Recents show the caller's name and photo.
Mac, iPhone and iPad
DetailsWork behind home and office routers with STUN and ICE.
Mac, iPhone and iPad
Opus for wideband audio, plus G.711 ulaw and alaw, the codec most PBXs and SIP providers support.
Mac, iPhone and iPad
Incoming calls ring on the iPhone's system call screen, including the lock screen.
iPhone and iPad
On the Mac, incoming calls appear in a floating window over every Space; the app keeps running from the menu bar.
Mac
| Feature | Plan | Mac | iPhone / iPad | Windows | Linux | Android |
|---|---|---|---|---|---|---|
| Multiple SIP accounts | Premium | Supported | Supported | No app yet | No app yet | No app yet |
| TLS and SRTP | Free | Supported | Supported | No app yet | No app yet | No app yet |
| Call transfer | Free | Supported | Supported | No app yet | No app yet | No app yet |
| Call hold and several calls | Free | Supported | Supported | No app yet | No app yet | No app yet |
| Call recording | Premium | Supported | Supported | No app yet | No app yet | No app yet |
| Call forwarding and Do Not Disturb | Premium | Supported | Supported | No app yet | No app yet | No app yet |
| Contacts with photos | Free | Supported | Supported | No app yet | No app yet | No app yet |
| STUN and ICE | Free | Supported | Supported | No app yet | No app yet | No app yet |
| Opus and G.711 codecs | Free | Supported | Supported | No app yet | No app yet | No app yet |
| CallKit integration | Free | Not supported | Supported | No app yet | No app yet | No app yet |
| Menu bar and floating call window | Free | Supported | Not supported | No app yet | No app yet | No app yet |
Windows, Linux and Android columns are empty because those apps do not exist yet.
Listed so you can decide with full information.
Push notifications for incoming calls
SIPdia must be open to receive calls. On iPhone the app unregisters about 20 seconds after leaving the foreground, so calls go to voicemail or forwarding. Missed-call notifications are shown locally.Video, messaging, presence
SIPdia is a voice softphone. It has no video calls, chat, presence or busy-lamp fields.Central administration
There is no provisioning server, device management, SSO or team billing. Each person enters their own account details.Bring the SIP account you already have. The Mac and iPhone apps are in release preparation; download links appear on the download page when each release is live.