Can I have more than one phone connected using this device?

Yes, the TX500 supports advanced Multipoint. If two phones that were previously paired with the TX500 are both in the car, the TX500 will monitor both phones for incoming calls.  A call on either phone can be answered by pressing the TX500 Call button.

If there is an ongoing call on one phone and a call comes in on the second phone, you will able to switch to the second call by pressing the Call button.