Softphones often come with a variety of features, some of which might change based on the application being used and the setup of the softphone; however, the following are some characteristics that are widespread throughout softphones:

1. Audio and video calling: Users using softphones are able to make and receive phone calls utilizing VoIP technology, which may include audio and video calling. Softphones have made this feature possible.
2. Instant messaging: The majority of softphones are equipped with a built-in instant messaging feature, which enables users to send and receive messages in real time.
3. Call transfer: The majority of softphones include the ability to transfer calls between users or departments, making it simple to route calls to the proper individual or group.
4. Call recording: Certain softphones are equipped with a call recording capability, which enables users to record conversations for subsequent playback or examination.
5. Participating in conference calls: Many softphones enable users to set up and participate in conference calls, which makes it easier to interact with members of a team and customers located in various regions.
6. Caller ID: A common feature of softphones is the ability to show caller ID information, which enables users to see who is calling even before they pick up the handset.
7. Voice messaging: Most softphones include the ability to accept and retain voice messages, which enables callers to leave messages for the user even when the user is unable to take their calls.
8. Contact management: Many softphones include the ability to manage users’ contacts, making it simple for users to locate and get in touch with contacts when necessary.
9. Integration with other software: Many softphones are able to link with other communication tools, such as customer relationship management (CRM) software or email clients, which enables users to optimize their communication process and increase their productivity.

These are some of the more standard capabilities that can be found in most softphones; however, the precise set of features that may be accessed will depend on the particular softphone program that is being used as well as the configuration settings for that application.