# Help testing upcoming 2.47+ with multi-relay and improved experimental calls **URL:** \ **Category:** User Testing\ **Created:** [March 24, 2026, 10:36pm UTC](https://support.delta.chat/t/help-testing-upcoming-2-47-with-multi-relay-and-improved-experimental-calls/4953 "2026-03-24T22:36:56Z")\ **Posts on this page:** 1\ **Showing post:** 23
**Author:** ![ian](https://support.delta.chat/user_avatar/support.delta.chat/ian/32/3164_2.png) [@ian](https://support.delta.chat/u/ian)\ **Post date:** [April 12, 2026, 6:18pm UTC](https://support.delta.chat/t/help-testing-upcoming-2-47-with-multi-relay-and-improved-experimental-calls/4953/23 "2026-04-12T18:18:26Z")
Related: > [@\[howto\] Provide custom TURN server settings when using a classic email account](https://support.delta.chat/t/howto-provide-custom-turn-server-settings-when-using-a-classic-email-account/5045/1): > > I am using Delta Chat with an existing email setup, and I wanted to test calls in the android app. Unfortunately there is no UI to configure TURN server settings, and the builtin server is not reachable from my lan. So here are the instructions to configure the IMAP server to provide TURN server address to the client. Prerequisites Existing coturn installation configured with static-auth-secret. Existing dovecot installation used as a classic email account. The server is configured with virtu… --- _[View the full topic](https://support.delta.chat/t/help-testing-upcoming-2-47-with-multi-relay-and-improved-experimental-calls/4953)._