Abstract: A system for transmitting and verifying alarm signals over a TCP/IP network includes an alarm panel hosting an alarm client and verification server and connected to at least one alarm sensor, a TCP/IP network, an alarm monitor server and a verification station connected to each other and to the TCP/IP network. If the alarm client detects an alarm situation, it transmits an alarm signal to the alarm monitor server. The alarm signal contains information on how to contact the verification server. If it is necessary to verify the alarm signal, the alarm monitor station sends the alarm verification station a verification request containing the contact information for the verification server. The alarm verification station contacts the verification server and obtains the verification information available from the alarm verification server.