There are services you can sign up for where a client can forward their number to yours or to a voice mail box that you can access, distinct rings for different incoming numbers, etc. I'm sure if you do a search on here you'll find some threads that talk about which services people have used for this. There are not a lot of VAs that offer this as a service but those that do and who do a good job can be in demand. However, I suspect it's not generally offered as a service by VAs as it is very time consuming and I think most clients will expect to not pay a very high hourly fee for this service.

__________________
Kimberly
Facebook Marketing Magic!