Features
Every feature, explained in plain English.
IBeX4 is built on Asterisk 22 and is fully compatible with it. Here is what it does, without the jargon.
Compatibility
The switch behind your phones
Built on Asterisk 22
Asterisk is the world’s most widely used open-source phone system engine. IBeX4 is based on Asterisk 22, the current long-term support release, packaged, tested and supported by FTI.
Fully Asterisk compatible
Standard Asterisk dial plans, configuration and interfaces (AMI, ARI and AGI) work on IBeX4, so existing Asterisk knowledge, tools and integrations carry over.
Any standards-based SIP phone or app
Use desk phones, cordless phones, conference phones, softphones and mobile apps from any manufacturer that follows the SIP standard. No proprietary handsets required.
All features included
Every feature on this page is part of the IBeX4 licence. There are no feature packs or add-on modules to buy.
Features
Everyday calling
The basics every phone user relies on.
| Feature | What it means |
|---|---|
| Extension-to-extension calling | Call anyone in your organization by dialing their short extension number, in the same building or another country. |
| Caller ID (name and number) | See who is calling before you answer, and show your name and number when you call out. |
| Caller ID blocking | Hide your number on an outgoing call when you need privacy. |
| Call waiting | Hear a soft tone when a second call arrives while you’re on the phone, and switch between the two. |
| Hold and music on hold | Put a caller on hold; they hear music or your own recorded messages instead of silence. |
| Blind transfer | Send a caller straight to someone else without speaking to them first. |
| Attended (warm) transfer | Talk to the person first, introduce the caller, then hand the call over. |
| Three-way calling | Add a third person to a call you are already on. |
| Call forwarding | Send your calls to another number or extension: always, when you’re busy, or when you don’t answer. |
| Follow-me / find-me | Ring your desk phone, then your mobile, then another number in turn, so callers reach you wherever you are. |
| Do not disturb | Stop your phone ringing; callers go straight to voicemail or another destination. |
| Speed dial | Store frequently called numbers under short codes. |
| Intercom | Call a colleague’s phone and have it answer automatically on speaker, like an office intercom. |
| Paging | Make an announcement through the speakers of a group of phones or an overhead paging system. |
| Call park and retrieve | Place a call in a numbered ‘parking space’ so anyone can pick it up from another phone. |
| Call pickup | Answer a colleague’s ringing phone from your own phone, individually or for your whole group. |
| Distinctive ring | Different ring patterns tell you whether a call is internal, external or from a particular line. |
Features
Answering and routing calls
Make sure every call reaches the right person.
| Feature | What it means |
|---|---|
| Auto attendant (IVR) | The recorded ‘press 1 for sales, 2 for support’ menu that answers and directs callers for you. |
| Time-of-day and holiday routing | Send calls to different places during business hours, after hours, at weekends and on holidays. |
| Direct numbers (DID routing) | Give people or departments their own phone numbers that ring them directly. |
| Ring groups (hunt groups) | Ring several phones at once or one after another, so a group shares incoming calls. |
| Caller ID routing and blocklists | Route calls based on who is calling, and block unwanted numbers. |
| Multi-carrier outbound routing | Choose which phone line or carrier each outgoing call uses, for cost or reliability. |
| Emergency call routing | Sends emergency calls out the right route with the caller’s location details configured for each site. |
Features
Call centers and queues
Tools for teams that handle many calls.
| Feature | What it means |
|---|---|
| Call queues (ACD) | Callers wait in line and are answered in order by the next available agent. |
| Queue strategies | Decide how calls are shared out: ring everyone, round robin, the agent who’s been idle longest, and more. |
| Agent login and logout | Agents join or leave a queue from any phone, so only people who are working receive calls. |
| Position and hold-time announcements | Tell waiting callers their place in line and the expected wait. |
| Real-time queue statistics | See calls waiting, agents available and wait times as they happen, for wallboards and supervisors. |
| Listen, whisper and barge | Supervisors can listen to a call, coach the agent without the caller hearing, or join the call. |
Features
Voicemail and messaging
Never miss a message.
| Feature | What it means |
|---|---|
| Voicemail | Callers can leave a message when you can’t answer; you play it back from any phone. |
| Voicemail to email | Receive voicemail messages as audio attachments in your email. |
| Message waiting light | A light or icon on your phone shows when you have new voicemail. |
| Custom greetings | Record different greetings for busy, unavailable and temporary absences such as vacation. |
| Group voicemail boxes | A shared mailbox for a team or department. |
| Dial-by-name directory | Callers find someone by spelling their name on the keypad. |
Features
Conferencing
Meet by phone.
| Feature | What it means |
|---|---|
| Conference bridges | Dial-in conference rooms with PIN protection for any number of participants, in high-definition audio where phones support it. |
| Conference controls | Mute participants, lock the room, and hear who joins and leaves. |
Features
Recording and reporting
Know what happened on your phone system.
| Feature | What it means |
|---|---|
| Call recording | Record calls automatically or on demand, for training, quality and records. |
| Call detail records (CDR) | A log of every call: who called whom, when and for how long, for billing and reporting. |
| Channel event logging (CEL) | A detailed step-by-step trail of each call, including transfers and holds, for deeper analysis. |
Features
Phones, apps and devices
Use the equipment you choose.
| Feature | What it means |
|---|---|
| Any standards-based SIP phone | Works with desk phones, conference phones and cordless phones from any manufacturer that follows the SIP standard. |
| Softphones and mobile apps | Make and take calls from a computer or smartphone app, as if you were at your desk. |
| Browser calling (WebRTC) | Place and receive calls directly in a web browser, with no software to install. |
| Multiple devices per user | Ring your desk phone, softphone and mobile app at the same time. |
| Busy lamp field and presence | Lights on your phone show whether colleagues are free, ringing or on a call. |
| Remote and roaming extensions | Use your extension from home, a hotel or another office over the Internet. |
| Video calls | Video calling between phones and apps that support it. |
| IAX2 connections | Asterisk’s own efficient protocol for linking phone systems together across the Internet. |
Features
Security
Protect your calls and your system.
| Feature | What it means |
|---|---|
| Encrypted signalling (TLS) | Scrambles call setup information so it can’t be read on the network. |
| Encrypted audio (SRTP) | Scrambles the conversation itself so calls can’t be listened in on. |
| Caller ID verification (STIR/SHAKEN) | Supports the US standard for checking that a caller’s number is genuine, helping fight spoofed calls. |
| Access controls | Limit which networks and devices can connect to the phone system. |
Features
Integration
Connect IBeX4 to your other systems.
| Feature | What it means |
|---|---|
| Manager interface (AMI) | Lets other software watch and control calls, for click-to-dial, screen pops and wallboards. |
| REST interface (ARI) | Lets developers build their own call applications on top of IBeX4 using a modern web interface. |
| Scripting (AGI) | Runs your own scripts during a call, for example to look up a customer record. |
| CRM and business software integration | Connect IBeX4 to your CRM or business software through its interfaces, for screen pops, click-to-dial and call logging. |
| Calendar integration | Change call handling automatically based on calendar events, such as meetings or holidays. |
| Text-to-speech and speech recognition | Connect speech engines so the system can read text aloud or understand spoken answers. |
Questions
Feature questions
Is IBeX4 based on Asterisk?
Yes. IBeX4 is based on Asterisk 22 and is fully compatible with it, including standard dial plans and the AMI, ARI and AGI interfaces.
Which phones work with IBeX4?
Any standards-based SIP desk phone, cordless phone, conference phone, softphone or mobile app. You are not locked into one brand.
Are all features included?
Yes. Every feature is included in the IBeX4 licence, with no feature packs or add-ons.
Can IBeX4 run a call center?
Yes. Call queues, agent login, queue announcements, real-time statistics and supervisor listen, whisper and barge are all built in.
Can we integrate IBeX4 with our CRM or other software?
Yes, through the Asterisk manager interface (AMI), the REST interface (ARI) and AGI scripting.
See it for your organization
Tell us how you work today and we’ll show you how IBeX4 fits.