A media interaction method in a Digital Enhanced Cordless Telecommunications, DECT, network cluster, comprising: establishing communication with a DECT host through a DECT network cluster constructed in advance; obtaining first account information allocated by the DECT host; sending information of a first call request to call a second account to the DECT host, so as to make a call to the second account in a first communication manner; and if no Real-time Transport Protocol, RTP, message from the second account is received, sending information of a second call request to call the second account to the DECT host, so as to make a call to the second account in a second communication manner; characterized in that the establishing communication with a DECT host through a DECT network cluster constructed in advance specifically comprises: after the DECT host sends a multicast command that declares joining a specified multicast group to a router, sending a multicast probe message sent to a target multicast group to the router, so that according to the multicast command, the router sends the multicast probe message of which the target multicast group is the specified multicast group to the DECT host; receiving status declaration information sent by the DECT host in a peer-to-peer, P2P, manner according to the multicast probe message after the DECT host receives the multicast probe message, and initiating a Transmission Control Protocol, TCP, connection request to the DECT host in a P2P manner according to the status declaration information; and after the DECT host receives the connection request, establishing a TCP channel with the DECT host; wherein the first call request is used for requesting the DECT host to call the second account in the first communication manner; and the first communication manner is a RTP P2P communication manner. establishing communication with a DECT host through a DECT network cluster constructed in advance; obtaining first account information allocated by the DECT host; sending information of a first call request to call a second account to the DECT host, so as to make a call to the second account in a first communication manner; and if no Real-time Transport Protocol, RTP, message from the second account is received, sending information of a second call request to call the second account to the DECT host, so as to make a call to the second account in a second communication manner; characterized in that the establishing communication with a DECT host through a DECT network cluster constructed in advance specifically comprises: after the DECT host sends a multicast command that declares joining a specified multicast group to a router, sending a multicast probe message sent to a target multicast group to the router, so that according to the multicast command, the router sends the multicast probe message of which the target multicast group is the specified multicast group to the DECT host; receiving status declaration information sent by the DECT host in a peer-to-peer, P2P, manner according to the multicast probe message after the DECT host receives the multicast probe message, and initiating a Transmission Control Protocol, TCP, connection request to the DECT host in a P2P manner according to the status declaration information; and after the DECT host receives the connection request, establishing a TCP channel with the DECT host; wherein the first call request is used for requesting the DECT host to call the second account in the first communication manner; and the first communication manner is a RTP P2P communication manner. after the DECT host sends a multicast command that declares joining a specified multicast group to a router, sending a multicast probe message sent to a target multicast group to the router, so that according to the multicast command, the router sends the multicast probe message of which the target multicast group is the specified multicast group to the DECT host; receiving status declaration information sent by the DECT host in a peer-to-peer, P2P, manner according to the multicast probe message after the DECT host receives the multicast probe message, and initiating a Transmission Control Protocol, TCP, connection request to the DECT host in a P2P manner according to the status declaration information; and after the DECT host receives the connection request, establishing a TCP channel with the DECT host; wherein the first call request is used for requesting the DECT host to call the second account in the first communication manner; and the first communication manner is a RTP P2P communication manner.