<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Hi all, i'm trying to track down the root cause of a SIP/2.0 500 Server error occurred (6/SL) response from Opensips and can't find any definition for what type of issue would cause this. It seems to happen after receiving several 503s from downstream endpoints, then this internal error is generated and sent. Any guidance is appreciated, Thanks in advance.</div></div></body></html>