All, I have a multi-tenant FreeSWITCH server up and running. We have all the proper SVR records setup for each domain and everything works great. Most SIP clients Just Work (tm), however, the new Polycom phones I have don't seem to auth properly with domains. I've tried every combination of settings (via the web config, I haven't setup a TFTP server yet). The issue is that auth has the domain twice, like so: user@domain.tld@domain.tld. It seems like the Internet has threads of discussion where others express frustration with this, but I can't seem to find a documented solution. It's maddening because every other User Agent Client works swimmingly and no matter what I've tried, I can't get the right combination of settings on the Polycom. I love the phones, but this is getting old :) Anyway, any pointers for me? Thanks, Gabe sofia.conf: ************************************************************* [SNIP] <domains> <domain name="all" alias="true" parse="false" /> </domains> <settings> <param name="log-auth-failures" value="true" /> <param name="forward-unsolicited-mwi-notify" value="false" /> <param name="context" value="public" /> <param name="sip-port" value="$${internal_sip_port}" /> <param name="dialplan" value="XML" /> <param name="inbound-codec-prefs" value="$${global_codec_prefs}" /> <param name="outbound-codec-prefs" value="$${global_codec_prefs}" /> <param name="rtp-ip" value="$${internal_ip}" /> <param name="sip-ip" value="$${internal_ip}" /> <param name="hold-music" value="$${hold_music}" /> <param name="record-path" value="$${recordings_dir}" /> <param name="record-template" value="${caller_id_number}.${target_domain}.${strftime(%Y-%m-%d-%H-%M-%S)}.wav" /> <param name="auth-calls" value="true" /> <param name="ext-rtp-ip" value="auto-nat" /> <param name="ext-sip-ip" value="auto-nat" /> </settings> [/SNIP]