Unknown Error

What is this error? I get it from time to time.

“Sep 19 14:30:00 WARNING[5507]: chan_sip.c:701 retrans_pkt: Maximum retries exceeded on call 6f204ece45a29ce148c2acf50c63910b@“mycompany” for seqno 102 (Non-critical Request)”

Thanks
Gerhard

Just curious: Are you using X-lite or the pro edition of X-lite??