kamailio-mqtt-modules 5.4.0-2 (amd64 binary) in ubuntu groovy

 Kamailio is a very fast and flexible SIP (RFC3261)
 server. Written entirely in C, Kamailio can handle thousands calls
 per second even on low-budget hardware.
 .
 MQTT module allows bidirectional publish/subscribe communication by
 connecting Kamailio to a MQTT Broker.
 .
 Messages can be published from any point in the routing script. Also
 the subscriptions can be fully controlled by scripting commands.