ISPhone are the ones to turn to for complete communication solutions. They specialise in IP telephony, fixed lines, mobile, and data services, along with a range of other communication services that will get your business operating more effectively.
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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