VoIP Features

All We Have to Offer


Setup a recording for the auto attendant that provides announcement to callers. (See IVR Menus)


Extendable with plugin support. Web interface authentication by default authenticates against the Nerd Pbx Database. LDAP is one and has also been tested with Microsoft Active Directory an OpenLDAP

Call Barge / Eavesdrop / Intercept

Listen into an active call from another extension.

Call Block

Listen into an active call from another extension.

Call Broadcast

Create a recording and select one or more groups to have the system call and play the recording.

Call Centre

Creates a robust call centre environment with agent tiers.

Call Detail Records

Various reporting capabilities to see who called, when, call length, export to a csv file, and call detail statistics.

Call Flows (Day Night Mode)

Typically used with day night mode. To direct calls between two destinations. Can work with BLF on phone to show which direction call will be directed to.

Call Forward

Forward to another extension or to any phone number.

Call Monitoring

View which extensions are currently in a call. (see Active Extensions)

Call Pickup

For a particular extension or any extension that is currently ringing.


Load calls into queues so they can be answered in the order they came into the queue.

Call Recordings

Record all or some calls or parts of the call.

Call Routing

Send the call different directions or perform actions based on reading the caller id info or other call information. (see Dial plan Manager)

Call Announced Transfer

Transfer the active call to another internal or external call. Also known as a warm transfer.

Call Blind Transfer

Transfer a call like the call was going into a call queue or from an ivr.

Call Transfer

Transfer a call.

Call Waiting

A beep while on a call and to toggle between two different calls.

Caller ID

Support for customization and supporting providers.


Set up voice and video conference calls, is optionally secure with a PIN number, and can transfer current calls to a conference. Interactive conference control provides ability to see the list of callers in the conference and manage the volume, see who is talking, kick, mute, unmute, deaf, undeaf, profiles and controls. (See Conference)

Conference Centre

Unlimited conference rooms with moderator and participants, pin numbers, call recording, mute all, caller announce and more…


While the admin configures the system in the web interface. The data is saved to the database and can optionally be delivered to FreeSWITCH via XML files, or on demand from the database.


Manage your contacts. Import contacts from Outlook CSV files. Export contacts to your cell phone with QR Codes. It is also possible to add additional features like time cards and invoices that can be related to the contacts.


Area to execute commands from the gui. Merged with SQL Query tool with a clip library.

Dial Plan Manager

The dial plan is used to setup call destinations based on conditions and context. You can use the dial plan to send calls to gateways, auto attendants, external numbers, to scripts, or any destination.

Direct Inward System Access (DISA)

Gives ability to call into the system, put in a pin code, and then call back outbound.

Device Provisioning

From Advanced > Default Settings you can enable provisioning for devices. Contacts used as Directory for the phones, vendor list and functions can be enabled or disabled. Support for memory, expansion (side cars), and programmable keys. Configure SIP endpoints for Yealink, Polycom, Cisco, Astra and several other brands.

Do Not Disturb (DND)

Direct calls to voicemail by default however there is an option when using do not disturb to send the call to an alternative destination.


Create extensions for phones to register to and an option to receive emails on missed calls.

Extensions Summary

Summary of extension activity per domain such as missed calls, answered calls, no answer, inbound duration, outbound duration, number of outbound calls, number of inbound calls and Average length of Conversation (ALOC). The summarized information can be downloaded as a CSV file.


File editor for PHP, XML, and Provisioning files.

Fax Server

A virtual fax machine that can send and receive faxes with advanced features.

Follow Me

Allows calling multiple extensions or external numbers.


Gateways provide access into other voice networks. These can be voice providers or other systems that require SIP registration. 

Hot Desking

A way to login to another phone device and temporarily or permanently become another extension. This is sometimes known as ‘hoteling’ and ‘extension mobility’

Inbound and Outbound Call Routing

Routes used to receive or send calls in or out of Nerd Pbx.

IVR Menus (Auto Attendant)

Create a structured interactive voice prompt for callers to use. Uses FreeSWITCH IVR and delivered from Database on Demand. Cached to memcache with IVR Menu Options all editable at once. Also works with Text to Speech.

Music on Hold

Allows multiple categories of music on hold that can be set globally or per domain. Can inject additional audio on intervals such as ‘Your call is very important to us please stand by’


Domain based multi-tenant using subdomains such as red.nerdpbx.co.za or green.nerdpbx.co.za or blue.nerdpbx.co.za

Operator Panel

A virtual panel that agents can drag and drop transfer calls. Adjust call state from available, on break, do not disturb and logged out.


Page another extension with or without password


Send a call to an unused “park” extension. The caller listens to music on hold until another extension connects to the call.


Using xml handler and xml from file system you can string together multiple voice files

Re-branding and Customize

Nerd Zone has unprecedented customizability which can be used to meet your needs or the needs of your customers. Customizable themes, menu, dial plan, and Hundreds of Default Settings to control the theme.


Create and manage personalized recordings

Ring Groups

Make one extension ring several extensions and an option to receive emails on missed calls.

Scalable and Redundant

Can be configured for multi-master database replication, file replication. Nerd Zone Pbx, Database, and FreeSWITCH can be distributed across multiple servers for large enterprise scale systems.

Time Conditions

A extension that can be timed to route calls based on domain select, global option, move to other domains, and holiday pre-sets.

User and Group Management

Edit, change or add users of all permission levels.


Has ability to copy voicemails for other voicemail boxes when receiving a voicemail. Additional features include voicemail to email and voicemail IVR. Forward add intro, check box for multi-delete

Voicemail to Email

Have voicemails sent to email.

Voicemail Transcription

Converts voicemails to text.


Make and receive video calls with a web browser.