ISDN-Net's VonX Hosted and VonX Complete services have all the features of a traditional PBX as well as others that only VoIP can provide. (Because it uses a company's existing PBX, VonX ConX features are dependent on the particular PBX and therefore aren't shown in the table.)
| VonX Hosted or VonX Complete Features | Feature Description |
| Local and long distance | Local calls and calls to anywhere in the U.S. are included. |
| Direct Inward Dial (DID) | Outside callers can directly reach individual extensions. Compared to regular PBX service, DID saves the cost of an operator, calls complete faster, and callers feel they are calling a person rather than a company. |
| Caller ID | Displays the name and/or telephone number of the person calling. |
| Call Waiting | An audible notification that another call is waiting. |
| Caller ID w/ call waiting | An audible notification that another call is waiting, as well as a display of the name and/or telephone number of the caller. |
| Call forward busy | Automatic routing of a call to another phone when the called party's line is busy. |
| Call forward no answer | Automatic routing of a call to another phone when the called party does not answer. |
| Call forward variable | Forward calls to a pager, cell phone, residential phone, another business line - you select where, each time you activate the service. |
| Hands Free | Use the phone without having to hold a handset. |
| Call transfer | Transfers the call to another phone. |
| Call park retrieve | Pick up a call that has been transferred to your phone. |
| Voice mail | Use your telephone to listen to messages recorded by callers. |
| Voice mail to email | Listen to voice mail messages on your computer that were automatically emailed to you. |
| Voice mail tree | The caller is given a list of options for reaching other departments or individuals in the company. |
| Company directory | The system helps a caller locate an individual by name. |
| Group Ring | An incoming call rings several telephones simultaneously. |
| Station-to-Station Dialing | |
| Call Hold | The caller can be temporarily retained while another call is answered or placed. |
| Call Park/Pickup-Redialing | Park a call at another specific extension and then retrieve it at the other phone. |
| Message Waiting Indicator | A visual indication that a voice mail message is waiting. |
| Do Not Disturb | You can choose to not be notified of incoming calls. |
| Flexible Dial Plans | Provides multiple options for customizing the dialing to meet each customer's unique requirements. |
| LCD Feature Support/Soft Keys | |
| Handset Volume Control | Controls the volume of the earpiece. |
| Reporting | Better tracking of employee call records through online reporting. |
