This is NTTA (Texas Toll Road Authority) calling to set up a payment plan for past due bills.

They called at 7PM last night, left no message.
I Googled 'Synergy Solutions' and here is part of their "About us":
"Synergy Solutions is a nationally recognized expert in outsourced call center solutions. Our core area of specialization is the realm of customer interaction management and our commitment to the quality of the customer experience. Our Mission is based on the concept of what we refer to as "Synovation". Synovation".
One of my medical providers has had them call me after procedures, can't remember which office.

SERIOUSLY??? .. "Customer interaction management"?????
Well, FREAKING "SYNOVATE ME" out of your little 'interaction'!!$#&%$!!

tried to reach my husband for the 3rd time for a medical survey.  got tired of telling them he passed away 6 weeks ago.  Told them to try St. Francis cemetary.  Now I am going to contact the medical group and tell them to make it stop.

This is a message service from a doctor's group.  I got 7 calls over the course of 3 days with no voicemail messages.  I finally answered (the long connection time after "hello" is a sign of an auto dialer) and had someone asking me if I could take a survey on a recent visit to a doctor's office.  It really was my doctor, so this is especially annoying that their office is giving out my information...

That constantly call my mothers phone and hang up when answered

call me than hang up

Same here.. they call and hang up when I answer.. wish someone would look into this

dont know them

Got unwanted call. Couldn't really make out what he was saying. Called twice and I answered. I just didn't answered the third time. No fourth time yet. Nor message.

Just got a call.  Readout says, Synergy Solutions, whatever that is.  I said hello three or four times.  Caller than came on and asked to speak to my wife.  I said no, and why don't you answer after I have said hello 48 times.

This same Company and # called 3 times last week, each time not leaving a message. They called again today and when I answered there was no one on the other end, so I hung up. Super annoyed.

I also didn't recognize the name Synergy Solutions, nor the 214 number.  And surprise!  They didn't leave a voicemail!

I didn?t recognize Synergy Solutions on my Caller ID, so I let the call go to voice mail.  Only they didn?t leave any message.  Assume it was a telemarketer violating the do-not-call registry.

No clue who this is...