Tips, guides, and insights on international calling and VoIP
88 articles
Learn what an 877 number really means. We explain toll-free 877 numbers, how they differ from area codes, why scammers use them, and what to do if one calls you.
Understand voice over IP termination with a practical call-routing example, see how SIP and PSTN handoff works, and learn why pricing, quality, caller ID, and destination coverage depend on termination routes.
Learn the correct way to call New Zealand from the USA. Includes +64 dialing format, Auckland and mobile examples, common mistakes, and the cheapest ways to call.
Looking for the best pay as you go phone? This guide compares the best PAYG phone setups for occasional international calls, no-contract use, and browser-based calling.
Compare the best VoIP service for small business in 2026. We break down Nextiva, Ooma, Google Voice, OpenPhone, and the best browser-based option for international calling.
Your guide to wholesale voice provider options in 2026. Understand VoIP/SIP, pricing, MOS quality, and APIs for businesses and developers.
Call El Salvador from the US for $0.05/min. Complete dialling guide with +503 country code, Salvadoran number formats, and cheapest calling options compared.
Call Iran from the US for $0.01/min. Guide with +98 country code, Iranian area codes, sanctions info, VoIP workarounds, and cheapest options that connect.
Call Saudi Arabia from the US for $0.01/min. Dialling guide with +966 country code, Saudi area codes, VoIP restrictions, and cheapest calling options.
Call Bangladesh from the US for $0.01/min. Dialling guide with +880 country code, Bangladeshi area codes, carrier info, and cheapest calling methods.
Call Nepal from the US for $0.01/min. Complete guide with +977 country code, Nepali area codes, NTC and Ncell info, and cheapest calling options.
Call Argentina from the US for $0.01/min. Guide with +54 country code, Argentine area codes, the 2024 numbering change, and cheapest calling options.
