Dropship Contact Information on PO Form

We'd like to get advised how to show phone number for dropship site. Phone number currently we set was for our company phone number. However, vendors need to see the end user's phone number for dropship order which related with customer's ship to phone number on Sales Order. We are using GP 2010 and do not have VBA.

Does anyone know how to set it on PO blank Form?

Thank you,

Jbserp