You need to look at the sip logs of your exp-e/c. The log you posted is useless.Find at the link below more info on how to collect the right logs from your expressways.https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/21336...

Do you actually see 2 outgoing sip invites or do you just look at the search history page?

Hi,you can remove the itl file from the phone by doing a factory reset or do a restore security under admin settings. The procedure may vary depending on the phone model.