Business customers are already demanding services from high-speed networks not expected from operators like Verizon Wireless and AT&T Inc until 2010.

But that timeline hasn’t deterred Scott Slater, an advanced engineering expert at The Bank of New York Mellon, who asked Verizon Wireless for two-way video conferencing on mobile phones so that bank representatives could bring an investment adviser into a client meeting. Slater has even come up with a new marketing slogan for the company.

“Verizon will have to change its moniker from “Can you hear me now” to “Can you see me now,” said Slater in a presentation at a technology conference run by the No. 2 U.S. mobile service for business clients. “When mobile video conferencing becomes rampant in the U.S. and Verizon changes its moniker” said Slater, “you heard it here first.”

Slater’s company has 42,000 employees in 34 countries, and is testing mobile video conferencing in Europe. Verizon Wireless technology executive Ian deCone would not say when he could offer video conferencing but said that faster data network speeds should help.

AT&T has offered a video-sharing service since July with two-way audio but only one-way streaming of video images. “What we’re really interested in is two-way video,” said Slater. “Video is a more effective means for communication. It’s more personal. Facial expressions tell a lot.”