What is configured on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?

Refer to the exhibit.

What is the result of a transformation applied to alias 88514?

Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

Which describes what could done on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?

Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing. To troubleshoot, SIP logs were collected. How is this issue resolved?