BT 3510 Main Base Unit ONLY for BT Cordless Phone 066262 066263 066264 066265

For BT Cordless Phone 066262 066263 066264 066265. BT 3510 Main Base Unit ONLY. 1x BT 3510 Main Base Unit ONLY. If requested, I can send a link or an image of the procedure. There may also be demonstration videos on Youtube that may help.