Just in case anyone is having DNS SRV timeouts with their Polycom phones, the following Polycom KB article should help: http://knowledgebase.polycom.com/kb/search.do?cmd=displayKC&docType=kc&externalId=12856&sliceId=SAL_PUBLIC_1_2&dialogID=7620671&stateId=1 We have set tcpIpApp.port.rtp.mediaPortRangeStart to 65000. Based on our experience and the fact that the phone's DNS resolver starts over from port 1026 on a reboot and increments from there, this should give us about a year before the ports overlap again, in the unlikely event that the phones won't get rebooted in the meantime. YMMV. CP