Skip to content
SIPXCloud
esen
SIPX Phone

SIPX Phone: your work extension on your mobile and computer

SIPX Phone is a softphone for Android, iOS, Windows and macOS that registers directly with SIPX SBC. It puts your company extension in your pocket or on your computer, anywhere with an Internet connection. It sets itself up from a welcome email, with no server or password to type.

Request a demo
  • One-tap setup from the welcome email.
  • Incoming calls even with the app closed, via push notifications.
  • Company directory with live status for every extension.
  • Shares the extension with SIPX Connect and moves calls without hanging up.

What is SIPX Phone?

SIPX Phone is the SIPX Cloud softphone: an app that turns your mobile or computer into your company extension. It registers directly with SIPX SBC over SIP on TCP or TLS (TLS recommended), just like an IP phone, but without extra hardware.

It shares the extension with SIPX Connect: a call rings on all of the user’s devices and can be moved from one to another without hanging up. The same person can answer in the office browser, in the desktop app or on their mobile when they’re away.

Who is it for?

  • Remote and field staff who need their extension outside the office, over the Internet with NAT traversal.
  • Companies replacing their PBX: extensions move to SIPX SBC and users to SIPX Connect or SIPX Phone.
  • Enterprises and small businesses that want the extension to ring on mobiles without sharing personal numbers.
  • Sales, support and reception teams that answer ring groups and need to see who is available.

Key features

Setup without typing a server or password

The administrator enters the user’s email on the extension record and sends the welcome message. The user receives an email with the download link and a “Set up SIPX Phone” button that opens the app, requests the configuration from the SBC and leaves it registered. Optionally, the email also includes SIPX Phone for Windows and Mac, each with its own button.

The button works once and expires after 72 hours by default; resending the welcome email cancels the previous one. If preferred, the app can also be configured manually with username, SIP domain, password and proxy, like an IP phone.

Audio and video

  • Audio with Opus, G.722 and G.711, echo cancellation and DTMF.
  • Video with H.264, with VP8 as fallback, when the SBC media profile allows it.
  • SIP video calls with SIPX Connect (Medium plan or higher in Connect).

Directory and presence

It shows the company directory with live status for every extension and ring group: available, on a call, ringing or offline. On Android it also shows the phone’s contacts, which never leave the device.

Calls with the app closed

With push notifications, calls come in even when the app is closed: on Android through Firebase, and on iPhone through Apple VoIP notifications and the system call screen. This requires push to be configured on the SBC; without it, iPhone calls only come in while the app is open.

On Android, incoming calls appear full screen even when the phone is locked, and the app starts automatically when the phone is turned on.

One extension on all your devices

Because it shares the extension with SIPX Connect, a call rings in the browser, the desktop app and the mobile, and can be moved between devices without hanging up. Extensions registered on the SBC, including SIPX Phone, take part in the SBC’s ring groups and pickup groups.

Quality measured on every call

With SIPX SBC 4.6 or later, each call’s quality (codec, packet loss, jitter, latency, MOS and whether the phone was on Wi-Fi or mobile data) is reported to the SBC. SIPX AI Engineer uses that data to diagnose audio problems with evidence.

Integrations

  • SIPX SBC: direct extension registration, automatic provisioning and push notifications.
  • SIPX Connect: the same extension in the browser, the desktop app and the mobile, with call handoff between devices.
  • SIPX Admin: the administrator manages the extension and sends the welcome email.
  • SIPX AI Engineer: uses per-call quality from SIPX Phone for diagnostics.
  • Microsoft Teams: with Teams Direct Routing on SIPX SBC, Teams can also call SIPX Phone extensions over the same network.

Requirements and availability

  • Android 8 or later; iOS 16 or later.
  • An Internet connection (Wi-Fi or mobile data) and an extension on SIPX SBC.
  • To receive calls with the app closed, push notifications configured on the SBC.
  • On Android, the app is installed from the link in the welcome email. iPhone distribution, app store availability and app licensing are confirmed by an advisor.

How is it deployed?

Timelines and scope for the rollout are defined by an advisor based on your case.

  • The extension exists on SIPX SBC, either in the SIPX Cloud or on an SBC installed at your company.
  • The administrator enters the user’s email on the extension record and sends the welcome email.
  • The user installs the app from the link and taps “Set up SIPX Phone”; the app is registered.
  • If calls with the app closed are needed, push notifications are enabled on the SBC.

Frequently asked questions

What is SIPX Phone?

A softphone for Android, iOS, Windows and macOS that registers with SIPX SBC (SIP over TLS or TCP), shares the extension with SIPX Connect and sets itself up from a welcome email.

How do I install SIPX Phone?

Your administrator sends you a welcome email with the download link and a “Set up SIPX Phone” button that registers the app without typing a server or password. The button works once and expires after 72 hours.

Can I receive calls with the app closed?

Yes, with push notifications configured on the SBC: Firebase on Android and Apple VoIP notifications on iPhone. On Android, incoming calls appear full screen even when the phone is locked.

Which phone versions are supported?

Android 8 or later and iOS 16 or later. Availability on iPhone and in app stores is confirmed by an advisor.

Does SIPX Phone have a directory and video?

Yes: a company directory with live status for every extension (and, on Android, your phone contacts), plus H.264 or VP8 video when the SBC allows it.

Can I use the same extension in SIPX Connect and SIPX Phone?

Yes. Calls ring on all your devices and can be moved from one to another without hanging up.

Can it be configured manually?

Yes. Besides the welcome email, the app can be set up with username, SIP domain, password and proxy (the SBC address), just like an IP phone.

How much does SIPX Phone cost?

App licensing is confirmed by an advisor. Contact the sales team and they will prepare a quote for your case.

Related products

They all share the same users, numbers and data on SIPX Cloud.

See the whole ecosystem
← Back to home
Book a demo

One platform, one provider, one bill.

We’ll show you Connect, the AI-powered IVR, the contact center and the Service Desk running with your company’s data.

  • Nothing to install: it runs in the browser
  • AI included in every product
  • Pay for what you use: Small, Medium or Full