This is a lead generation or 3rd party telemarketing company. Their many outbound callers will contact homes and business for surveys, leads, appointments, etc. They have MANY different names but their standard information is always:

biz2bizmarketing.com (Business to Business Marketing) or
MedContacts Marketing.com

Owner/Manager: Tonya Strand
630 Ash Street
San Diego, CA 92101
Phone: (619) 881-5341
Fax: (619) 615-9293

(619)881-5300 are also collecting information to use it for other purposes than just marketing, they are working with collection agencies. You do not want to answer their call or talk to them.....

RECD A CALL FROM 1-619-881-5300 AND THE CALLER SAID SHE WAS TOLD THAT I HANDLE ALL THE INFORMATION SYSTEMS CALLS THAT PERTAIN TO VENDOR INVOICES ( WHAT ?????  )  I EXPLAINED THAT I DO NOT MAKE THOSE DECISION HER - SHE MADE ALL THAT UP AND I DONT CARE FOR WHAT THEY ARE SELLING.  TELEMARKETERS WASTE SO MUCH OF MY TIME WHILE AT WORK.
I GET AT LEAST 3 A DAY- EVERYTHING FROM COPIER TONER TO WARRENTY FOR CARS, APPLIANCES, AND HOME.

Just got a call from this number. They called yesterday but I didn't pick-up the phone and no message was left by the caller. Waste of time!

called and asked for the manager. was rude when I said he was out for the day. would not leave message with secretary.

BUSINESS TO BUSINESS MARKETING (also known as BIZ 2 BIZ MARKETING.COM)    
630 ASH ST
SAN DIEGO, CA 92101-3212
Phone:
(619) 881-5300
Fax:
(619) 615-9293

Attn: Ms. T. Randle

Man called wanting to talk to "the person in charge of the roof maint for the company"  Asked what he was calling for and what was the contact name.  he stated he was checking on the warrenty of the roof and that they are the company that holds said warranty.  I said you should have the name the person in charge on your paper work of the warranty purchase.  He again stated he didnt.  I told him id get him to vendor verifcation to verify the purchase of the roof warranty so he could connect to the right person.  He was sent to vm.  of course this guy was lying what kind of company doesnt know the name of the person that bought something from them really??  so sick of all the telesales calls and so are all the purchasing people also they will no longer take any calls from sales ppl without them sending in company info to be investigated.

Incoming Calls from 619-881-5300 are always rejected.  This number is on my DO NOT ANSWER OR CALL BACK NUMBERS LIST which now contains over 300 numbers listed accordingly by Area Codes.  Telemarketers are definitely annoying to businesses.  Thank you to all who submit messages on sites such as this one.

I doubt if telemarketing will ever become a thing of the past!  Actually, I feel sorry for people who have to take jobs such as this (even though many are rude and obnoxious).

This is a telemarketing company called Business to Business they used to do cold calling for the company I work for...

called asking for Tom. Left no message.

called no message

called, no message

This number called my work phone and did not leave a message. I also could not call back.

Called, didn't leave a message at my work number (behind an extension).

It's to follow up on inquiries in to UCI Extension. (not UCI itself - UCI Extension is a non-matriculated division of UC Irvine) area code is san diego, UCI is in 949.

UC Irvine called from this number and left a message to see if I'm interested in going to UC Irvine (CA).