To activate the call waiting from your Xperia device (Single SIM) Android 10 or 11. Your first call will be placed on hold, and your second call will be on the line. Thanks to all authors for creating a page that has been read 100,857 times. In Europe, the function came together with the first digital PBX systems such as Ericsson AX, Alcatel E10 and System 12. With Call Waiting, you’ll hear a discreet ‘bip-bip’ tone every five seconds so that you know there’s another call coming in. 7. Press the menu icon . You can therefore avoid chasing the person that you wan’t to get in touch with. Press Call waiting to activate or deactivate the function. Tap Calls → Call Waiting; Tap the switch beside Call waiting to enable the function. When call waiting is turned on, you can answer a new call without ending your ongoing call. When Anonymous Call Blocking is turned on, callers hear a message telling them to hang up, unblock their phone number and call again. Include your email address to get a message when this question is answered. Replies. At the same time as the first generation of electric PBX was built by Western Electric. Nicole also holds an MFA in Creative Writing from Portland State University and teaches composition, fiction-writing, and zine-making at various institutions. She has more than 20 years of experience creating technical documentation and leading support teams at major web hosting and software companies. It's easy, but remember you need to turn on call waiting before you can use this function. Nicole Levine is a Technology Writer and Editor for wikiHow. To activating call waiting option it is *#43# and not *43# Reply Delete. Tap the menu button (three vertical dots), then tap Settings → Calling accounts. 1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/ad\/Activate-Call-Waiting-on-Android-Step-1.jpg\/v4-460px-Activate-Call-Waiting-on-Android-Step-1.jpg","bigUrl":"\/images\/thumb\/a\/ad\/Activate-Call-Waiting-on-Android-Step-1.jpg\/aid9963604-v4-728px-Activate-Call-Waiting-on-Android-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"