Agents can receive their calls on any of the devices that are associated with their extension. This is ideal for distributed groups that work from office, home or any other location with an Internet connection or phone line. The group management can choose the best device for the agents. A special feature was added for cell phones. Calls to the extension's cell phone can be enabled at a group (ring group or queue) and an extension level, providing maximum flexibility on where to serve incoming calls. When receiving the call, the agent can be required to confirm the call by pressing a digit on the phone, so that the call does not get lost in the agents mailbox when the agent is not available. For example, this makes it possible to include real estate agents or taxi drivers in agent groups while they are on the road, tremendously reducing the required staff to operate the queue. The feature is not limited to cell phones, it can also be used with regular telephone lines, for example in areas with limited cell phone reception but existing telephone lines.

There is a number of prerecorded announcements available that you can use to send calls to the accounting department, sales, support, the front desk, medical services and many other destinations. Those can be mixed with your own recordings. If you like, you can have the PBX mix the prompts with music on hold-sources.

Vodia maintains a list of known SIP trunk providers. Those providers can usually be configured by just providing the username and the password. After setting up the trunk, the PBX will register to the right destination and set up the SIP headers the way the SIP provider wants it. There is no further tweaking of the SIP settings necessary, which makes it easy to use SIP trunks.

When all agents are logged out or are no longer registered, calls can be automatically redirected to a programmable destination. This is useful for after hours or when only few agents are assigned to a queue.

Similar to the automatic provisioning of VoIP phones, the PBX can also automatically set up PSTN gateways with a reasonable configuration. For this the administrator needs to provide the IP address of the device (typically a statically assigned IP address) and make sure that the device is using its default username and password. After the initial configuration, the PBX will set up a dial plan for the new trunk. The administrator can use this plan as a template to build onto with more elaborate rules for dialing out.

Each extension has it own address books. Extensions also share the domain address book, which is available for the whole domain. The PBX address book stores information in the PBX itself. Users can edit the address book through the web interface. The address book entry may also tell the PBX to reject calls from the contact

The maximum number of calls for the queue can be defined to ensure that limited trunk resources are not overloaded. When that number has been reached, the ACD can send a busy signal to the caller, so that the trunk line gets cleared up. This feature is important when other trunks lines need to be kept open for other high-priority queues or for other services.

While other calls may be recorded or not, emergency calls are special. Because of their special nature, emergency calls can explicitly be recorded or explicitly not be recorded.

Trunks may have rates that define how much a call to a specific destination will cost. Those rates depend on the starting pattern of the destination. Inbound calls can also be billed depending on the number that was dialed, making it possible to show the cost for toll-free numbers. VoIP phones that support advice of charge (AoC) can show the cost on the display while the call is progressing. The cost for the calls can be fed into a monthly bill using a cloud-based billing platform. Rates can then include semi-flat rates, where users get a budget of monthly included minutes.

Finding a user is one of the most important tasks that the PBX has to fulfill. A missed call is wasted time for the caller, a waste of productive time and must be avoided as much as possible. The PBX supports several ways to find a user, where ever the user is. The user can program various redirection options. A simple "Do not disturb" (DND) redirects calls either to coworkers, offers callbacks after DND is disabled or just sends calls to the users mailbox. Redirection on busy, timeout or just always allows explicit programming of the redirection target.

Staff members can be notified by email or text when a emergency calls is being started. The email contains the extension number that started the call and the time.

When agents place outbound calls, the PBX can associate the caller-ID of the ACD with the call and log the call in the statistics for the ACD. Each ACD keeps a list of numbers that should be called. This list can be uploaded through the web interface. The agent can pick the next number from the list by dialing a star code. If the call connects successfully, the agent can use the "pound" key to take the number off the list; if the call was not successfully connected, the agent may put the number to the back of the list, so that the agent or someone else can try to call this number later. This feature is also available from the users cell phone, enabling mobile outbound calling. Because of the simple next-function for outbound calling, it is easy to use this function from regular cell phones.

The agents and selected management accounts can use their web browser to monitor the calls that are waiting and connected. A brief summary shows how much time agents have spent on the phone and idle; the web page also contains information about the number of processed calls, the average and total call duration and how long callers had to wait on average before the call got connected to an agent.

User portal provides easy call control, like making, ending, transferring, holding etc. for multiple calls both through WebRTC or desktop phone associated with portal. Also gives live status of other users' phones.

Ring groups can include up to three stages of numbers (extensions or external numbers), plus a final stage that connects the call when there nobody else picked up the call. Each stage rings for a programmable duration.

The Vodia apps are taking full advantage of WebRTC. This includes the OPUS codec for excellent audio quality and DTLS security context negotiation.