I would like to connect one of the newer Motorola phones to a microcontroller using a RS-232 connection. Is there a RS-232 serial cable available for the V180, V220, or V3? A pinout to make one?

Motorola developer support says, "We do not supply RS232 cables for this (V-180) handset, but you may be able to purchase one through a non-Motorola source".

Thanks