The service allows hiding the number from which you are calling. Thus, you ensure yourself a guarantee that your number does not come to a telemarketing agency and you won’t be troubled by endless calls with offers.
Advanced Voice Order Processing System (AVOP) is a wholly owned subsidiary of Nettel Holdings, Inc. By joining AVOP Direct, carriers and service providers will be able to avoid the time and expense of negotiating and managing one-time agreements with othe
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