Your office extension, on your Mac and iPhone
SIPdia registers as an ordinary extension on the PBX you already run, so staff keep their number, transfers and voicemail wherever they work.
Who uses SIPdia at work
Small businesses
Replace or supplement desk phones with the Macs and iPhones people already own. One PBX, extensions everywhere, calls transferred between colleagues as usual.
Remote and hybrid teams
Staff register from home or a hotel over TLS and SRTP. STUN and ICE handle home routers. Forwarding set at the PBX catches calls when a laptop is closed.
IT and telecom administrators
Standards-based SIP, documented account fields, DNS SRV, outbound proxy, auth username, and detailed SIP logs users can share when something fails.
Teams on hosted SIP services
Hosted PBX or SIP trunk with user accounts? SIPdia registers like any SIP endpoint, with several accounts in one app for people who cover more than one line.
Everyday workflows that work today
- Reception and transfer. Answer on the main line, speak to the colleague, then complete an attended transfer. Or blind-transfer straight to an extension.
- Several lines per person. A support line and a sales line as two accounts, each with its own forwarding and feature codes. Needs SIPdia Premium.
- Recording important calls. Press Record on the calls that matter; files stay on the device as WAV. Check consent rules first. Needs SIPdia Premium.
- Out of office. Turn on Do Not Disturb or forward to a mobile through the PBX's feature codes, so the rule holds even when the Mac is asleep. Needs SIPdia Premium.
- Secure remote access. TLS plus SRTP Required for staff outside the office, or UDP/TCP over the company VPN where the PBX has a self-signed certificate.
What SIPdia does not do for businesses yet
So you can plan around it rather than find out later.
No central administration
No provisioning, device management, SSO, usage analytics or team billing. Each person sets up their own account.No background calling on iPhone
The app must be open to ring. Plan forwarding at the PBX, or pair with desk phones.No Windows, Linux or Android apps
Mixed fleets need another client on those platforms for now.No PBX directory, presence or chat
SIPdia has its own synced contacts, but it does not read the PBX phone book (LDAP), show busy lamps (BLF) or offer chat.Rolling out to a team? Start with the PBX integration guides and the PBX hardening guide.
Frequently asked questions
Can IT push SIP account settings to every device?
Not today. SIPdia has no provisioning server or device management. Each person enters the server, extension and password, or IT does it with them. Document your PBX settings once and share them.
Is there central billing for Premium?
No. SIPdia Premium is an Apple in-app purchase per Apple Account. Apple Business Manager volume purchasing does not cover in-app subscriptions.
Does SIPdia work with our hosted PBX?
If the service accepts standard SIP registration over UDP, TCP or TLS with G.711 or Opus, it should. Issabel setup is documented; general guides exist for Asterisk, FreePBX and SIP trunks. Test with one extension first.
Can staff receive calls when the app is in the background on iPhone?
Not yet. The app must be open; it unregisters about 20 seconds after leaving the foreground. Set the PBX to forward unanswered calls to a mobile number or voicemail, or use a desk phone alongside.
Does SIPdia store call data on your servers?
No. SIP accounts, passwords, call history and recordings stay on the device. SIPdia's server keeps the sign-in (name, email, account ID), basic device details for subscription support, and the contacts people save in SIPdia, so those sync across their devices. See the privacy policy.
Is there a business support channel or SLA?
Not at the moment. Use the contact page; details will be published there once confirmed.
Get SIPdia for your Mac, iPhone or iPad
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.
