Regular Expression for US Phone no. with optional Ext of 5 digitsThis topic has 0 replies, 1 voice, and was last updated 10 years, 11 months ago by Site Default.Viewing 1 post (of 1 total)AuthorPosts June 26, 2012 at 6:39 pm #3894 Site DefaultMemberPlease somebody help me in solving that problem: Regular Expression for US Phone no. with optional Ext of 5 digits AuthorPosts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.Log In Username: Password: Keep me signed inLog In