I've met guys who have seriously altered their photos and others who have posted photos that must be a decade or more old so there's a lot of "covering up" happening on the internet.
A person can hide their true self way better on the internet than by voice over the phone.
I can tell pretty much within 3 -5 minutes of conversation whether or not I would like to meet this person.
It takes much longer to get to know someone on the internet. All in all, I don't think the guys on the phone are any worse or better on the internet than on the phone.
Also, your phone number is never displayed to the other person so unless you give it out, they have no way of tracking you down. Maybe just more upfront on the phone what they are looking for and we know they are more or less all looking for the same thing.
I do think phone chat lines would work will well if blended together with the on-online sites. Phone chat line pros: you can listen to voice and u can tell a lot by a voice of the person. Most women are seperated, married and not happy, single and don't have the resouces to meet guys. I'm not really comfortable chatting on the phone with strangers.
Lavalife chat line has it where u can go to a site to see a pic of the person if they have a pic. I want to know a little about someone before my phone lines are open to them.