Call errors during the setup state of a call.

States of an arbitrary call object.

Tool to determine that the call state is in which period.

Stores dialing information about the other communication client in both incoming and outgoing calls

Provides information about the DTMF events.

The class that converts int data to DTMF signals

DTMF Named Events

DTMF signal.

Defines different types of DTMF signaling methods

Represents encoded media data with codec properties.

Provides information about a package received in SIP INFO request body.

Phone call interface.

Defines methods to attach and detach the object to a IPhoneCall object.

Phone call listener behavior.

Combines an arbitrary phone call object with its listener.

PhoneLine abstraction.

Phone line listener behavior.

Combines an arbitrary phone line object with its listener.

Specifies methods for keep-alive SIP ports.

Represents the SIP message received from a remote party

Information about state of the phone line.

Represents a SIP user account.

An enum that represents the SRTP encryption mode for the calls

Represents the information about the call transfer

Specifies the state of the call transfer

Provides data for VoIP SIP SDK events to handle events with type parameters easily.