What is A-Z Termination in VoIP?

Wholesale VoIP carrier solution

A-Z Termination, also known as Afghanistan to Zimbabwe Termination, implies that a VoIP Carrier offers VoIP  Termination routes over the entire globe.  Listing all of the countries in the world, in alphabetical order, Afghanistan comes first and Zimbabwe last.   It makes sense to abbreviate the two.

Other abbreviations such as A-Z cc CLI, A-Z CLI, A-Z NCLI often seem like a mouth full.  They’re just a few relatively simple terms that represent the type of A-Z Termination route the Carrier offers.

A-Z cc CLI stands for A-Z Call Center CLI termination.  The CLI acronym stands for Caller Line Identification.  CLI implies that the Caller ID of the Caller with be portrayed to the call-recipient.  Call Centers and large businesses typically have low  ALOC.  Thus network demand on the Carrier is greater which typically leads to more expensive rates to compensate for the load.  Short duration, Call Center, traffic typically has an ALOC below 1 minute.

A-Z CLI implies the Carrier offers VoIP termination across the globe and will portray the Caller ID of the Caller to the recipient.  A-Z CLI offers will give the lowest PDD (Post Dial Delay) and offer the clearest audio.  Most carriers expect an ALOC above 1 minute over a A-Z CLI route.   A-Z CLI routes are less expensive than A-Z cc CLI.

A-Z NCLI is an offer that has global coverage but does not guarantee the Caller ID will be displayed to the recipient.  Most often this is best attempt at displaying Caller ID and is sometimes referred to as a grey route.  NCLI routes can be the least expensive but are more difficult to manage without CLI.  ALOC requirements for NCLI are negotiable with each carrier.


Looking for A-Z Termination?  Star Communication offers VoIP services across the globe and unlimited capacity for most destinations.  Check out our latest A-Z cc CLI and A-Z CLI rate decks here

Hit our Free Testing button today.  Use $5 in credits to check CDRs, call stats and more.

Phone: 1(877) 519-8464
Email: sales@starcompartners.com

Leave a Reply