InfoWorld has published the Best of Open Source Software Awards 2009. Kamailio (OpenSER) has been awarded within category: Best of Open Source Networking Software.

From InfoWorld site:
“Award winners in network and network management are old favorites Cacti and Nagios, the IPCop firewall, Kamailio SIP proxy server, KeePass password manager, Openfiler SAN/NAS appliance, OpenNMS enterprise monitoring system, [...]