How do I mute my phone while talking on my 4G LG Viper?

[AC Question]

how to mute phone while talking 4G LG Viper

During I would to know how to toggle - mute to talk

 

[B. Diddy]

Re: how to mute phone while talking 4G LG Viper

Welcome to Android Central! Look at page 40 of your manual: http://support.sprint.com/global/pdf/user_guides/lg/viper/lg_viper_ug.pdf