[SR-Users] Need help troubleshooting messages that never made it to the client

Hi all, So for a while now I've been working with our engineering team to troubleshoot these random events where the UPDATE message sent from the server never made it to the client side. Here is the the topology: Server -(tcp)-> kamailio -(tls)-> client So looks pretty straight forward and I have logging messages stating t_relay() was successful in sending the message. The question is how do we know t_relay really successfully sent it? Does it actually monitor the physical interface as it goes out? Please advise. Thanks. -- Andy Chen -- *Confidentiality Notice: The information contained in this e-mail and any attachments may be confidential. If you are not an intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail is strictly prohibited. If you have received this e-mail in error, please notify the sender and permanently delete the e-mail and any attachments immediately. You should not retain, copy or use this e-mail or any attachment for any purpose, nor disclose all or any part of the contents to any other person. Thank you.*