The one with name "jc" below is probably someone working for Global Travel International. Do dot trust this person. Global Travel International have been calling me everyday and I don't even have any account with them. I will report their number to the www.donotcall.gov every time they call. This is one example of a travel agency with bad business practice.
Global Travel International is a travel company and they usually only call to remind you that your membership is about to expire. They are not a telemarketing company. If they are calling you in error, just tell them and they will stop.
Call from 214-269-5757 is from a company name: Global Travel International. they are Telemarketer. Just file a complaint with www.donotcall.gov every time they call if you are on the DO NOT CALL list. This should stop them from calling within 30 days.