A system for tracking and archiving communications between a mobile device and a telephone, the system comprising: a gateway configured for receiving communications from and sending communications to a mobile software application that is installed on the mobile device; a PBX system including at least one phone number associated with a user of the mobile device; wherein the mobile software application on the mobile device originates a communication with the gateway directed to the telephone; wherein the gateway is configured so that upon receiving a communication from the mobile software application directed to the telephone, the gateway shall: determine if the telephone can receive a communication with the mobile software application; if the gateway determines that the telephone can receive a communication with the mobile software application, sending the communication to the mobile software application on the telephone; and if the gateway determines that the telephone cannot receive communications via the mobile software application, sending the communication to the telephone via at least one of the PBX system using the phone number associated with the user of the first mobile device; and wherein the gateway is configured to automatically send a copy of the received communication to an email archiving system configured for at least one of: preserving the communication; searching for the communication; reviewing the communication; and producing the communication for electronic discovery; and wherein the gateway is further configured for formatting the communication to match an email format so that the email archiving system can import the communication. a gateway configured for receiving communications from and sending communications to a mobile software application that is installed on the mobile device; a PBX system including at least one phone number associated with a user of the mobile device; wherein the mobile software application on the mobile device originates a communication with the gateway directed to the telephone; wherein the gateway is configured so that upon receiving a communication from the mobile software application directed to the telephone, the gateway shall: determine if the telephone can receive a communication with the mobile software application; if the gateway determines that the telephone can receive a communication with the mobile software application, sending the communication to the mobile software application on the telephone; and if the gateway determines that the telephone cannot receive communications via the mobile software application, sending the communication to the telephone via at least one of the PBX system using the phone number associated with the user of the first mobile device; and wherein the gateway is configured to automatically send a copy of the received communication to an email archiving system configured for at least one of: preserving the communication; searching for the communication; reviewing the communication; and producing the communication for electronic discovery; and preserving the communication; searching for the communication; reviewing the communication; and producing the communication for electronic discovery; and wherein the gateway is further configured for formatting the communication to match an email format so that the email archiving system can import the communication.