Serpius Dento
Communication & Customer Relations
Serpius works with communication and customer relations at BoraPhone. With hands-on experience helping users navigate international calling, he writes practical guides based on real conversations with customers worldwide.
About Serpius
Serpius Dento leads communication and customer relations at BoraPhone, a browser-based international calling platform built in Oslo, Norway.
Through daily conversations with customers across the globe, Serpius has developed a deep understanding of the real challenges people face when making international calls — from confusing dialing formats to unexpected carrier charges.
Before focusing on customer-facing communication at BoraPhone, Serpius built his expertise in telecommunications by working closely with support teams and monitoring the questions that come in most frequently. This front-line experience gives him a unique perspective on what people actually need to know, not just what's technically accurate.
Serpius personally tests calling routes, documents common issues, and turns customer feedback into actionable guides. His writing on the BoraPhone blog is grounded in real interactions — every tip, checklist, and comparison reflects problems that real users have brought to his attention.
When he's not writing or helping customers, Serpius stays current with telecom industry trends and VoIP developments to ensure BoraPhone's content remains accurate and useful.
Articles by Serpius
Talk360 Review: Is the Calling App Worth It?
Talk360 review, October 2026: is Talk360 legit, what calls cost to 5 countries, how credit expiry and refunds work, and who should use something else.
Can WhatsApp Call a Landline? No, and Here's What Can
WhatsApp cannot call a landline. It only calls other WhatsApp users. Why, which apps can dial landlines today, and how to call one abroad from a browser.
Telus International Calling: Rates, Saver Add-on and Home Phone Plans
Telus international calling costs C$1.65 to C$3.30 a minute on mobile without an add-on. See which countries the Saver covers and cheaper options.
How to Call the UK from Spain: Codes, Costs and Canary Time
How to call the UK from Spain: dial 00 44 and the number without its first 0, or +44 on a mobile. What roaming, Spanish SIMs and bonos cost.
amaysim International Calls: Included Countries and Rates
amaysim international calls are unlimited to 28 or 42 countries on its Unlimited plans. Other countries are charged per minute, from 10c to India.
HMRC Contact From Abroad: Phone Numbers That Work Outside the UK
HMRC contact from abroad: the +44 numbers for Income Tax, Self Assessment, National Insurance and Child Benefit, opening hours and what the call costs.
Vodafone Roaming Charges: Europe, USA and Rest of World Prices
Vodafone roaming charges explained: £2.75 a day in Europe, £8 a day in the USA and Zone D, pass prices, and what a call home really costs.
How to Call Italy from Canada: Keep the 0, Costs and Times
How to call Italy from Canada: dial 011 39 and the full number, keeping the 0 on landlines (011 39 06 for Rome). Costs, time gaps and common mistakes.
Vodafone International Calls: Extras, Prices and Cheaper Options
Vodafone international calls are not in UK plans. International Saver costs £6.95 for 100 minutes to 100 countries. Every Extra, code and price.
How to Call the USA from China: Dialing, Costs and What Works
How to call the USA from China: dial 00, then 1, then the 10-digit number (or +1 on a mobile). Plus blocked apps, Chinese SIMs and real costs.
US Mobile International Calling: Plans, $3 Add-On and Country Caps
US Mobile international calling is included on most plans or costs $3 a month as an add-on, covering 200+ countries. Plan rules, caps and dialing tips.
Phone Cards for International Calls in Australia: A Buyer's Guide
How phone cards for international calls work in Australia, where to buy one, the fees hidden on the card, and what the same call costs without one.
What Is a Virtual Phone Number? How It Works, Costs and Limits
A virtual phone number is a real number that rings over the internet instead of a SIM or phone line. How it works, what it costs and what it cannot do.
How to Make International Calls from Australia: 0011, + and Costs
To make international calls from Australia, dial 0011 or +, the country code, then the number minus its first 0. Codes, rates and packs for 15 countries.
How to Make International Calls from Canada: 011, +1 and Real Costs
To make international calls from Canada, dial 011 (or + on a cell), the country code, then the number. US calls are long distance. Codes and costs inside.
Best SIM for International Calls in the UK, by Destination
The best SIM for international calls from the UK depends on where you ring. EE, O2, Lyca and giffgaff compared, with October 2026 prices.
Rebtel Review: Rates, Subscriptions and Who It Suits
Rebtel review for October 2026: real rates to 5 countries, how plans renew, credit expiry, what reviewers complain about, and whether Rebtel is legit.
Bell International Calls: Rates, the $8 Saver and Cheaper Options
Bell international calls cost C$1.50 to C$3.00 a minute on mobile without an add-on. See the $8 Saver rates, home phone plans and a 10-minute cost table.
Call From a Chromebook: Google Voice, Browser Calls and Mic Fixes
To call from a Chromebook, use Google Voice or a browser calling service in Chrome. Phone Hub does not place calls. Steps, mic fixes and costs.
How to Call the UK from Abroad: +44, Exit Codes and the Dropped 0
To call the UK from abroad, dial your exit code (or +), 44, then the number without its first 0. Exit codes, costs and UK numbers that fail overseas.
International Calls on Vodafone Australia: Rates, Zones and Add-ons
International calls on Vodafone cost A$0.02 to A$0.50 a minute to popular countries, and many plans include Zone 1. Rates, add-ons and when to skip them.
Delta International Phone Number (Plus American and United)
Delta international phone number by country, plus American Airlines and United: which numbers work from abroad, hours, and the cheapest way to call.
EE Roaming Charges 2026: Daily Charge, Passes and Calls Home
EE roaming charges for October 2026: £2.72 a day in Europe, £6 to £16 day passes elsewhere, and what a call home to the UK really costs.
How to Call India from Canada: Dialing, Costs and Time Gaps
How to call India from Canada: dial 011 91 and the 10-digit number, or +91 on a cell. Rogers and Bell costs, cheap options and time gaps by province.
Lebara International Calls: Included Countries, Minutes and Costs
Lebara international calls are included on every SIM-only plan to 50+ countries. See which countries, how many minutes you get, and what costs extra.
Cricket International Calling: Add-On Prices, Countries and Limits
Cricket international calling costs $10 or $15 a month per country as an add-on, and Mexico and Canada come free on Unlimited plans. Prices and limits.
How to Call the USA from India: ISD Codes, Packs and Costs
How to call the USA from India: dial 00 1 and the 10-digit number, or +1 on a mobile. ISD pack prices, the half-hour time gap and cheaper options.
Calling Cards for International Calls in Canada: What to Check
A calling card for international calls works with an access number and a PIN. Where to buy one in Canada, the fees to check, and what 10 minutes costs.
How to Call the USA from the UK: Dialling Code and What It Costs
How to call the USA from the UK: dial 00 1, then the 10-digit number, or +1 on a mobile. What EE and BT charge and how to call America for less.
Google Voice International Calls: Rates, Setup and What Fails Abroad
Google Voice international calls cost from $0.01 a minute, paid from prepaid credit on a US Google Voice number. Rates, dialing steps and the limits.
How to Call the USA from France: Codes, Plans and Costs
How to call the USA from France: dial 00 1 and the 10-digit number, or +1 on a mobile. Which French plans include US calls, and what calls cost.
How to Call the US from Japan: Dialing, Costs and Time Difference
How to call the US from Japan: dial 010, then 1, then the 10-digit number (or +1 on a mobile). Plus SIM traps, payphones and real costs.
Mint Mobile International Calls: Rates, Credit and Free Countries
Mint Mobile international calls are free to Mexico, Canada and the UK. Other countries use wallet credit at per-minute rates. Here is what each call costs.
O2 International Bolt On: Prices, Rates and How to Add It
The O2 International Bolt On costs £3 a month and cuts calls from the UK to 1p to 6p a minute for many countries. Rates, terms and how to add it.
Phone Plans With International Calls in Canada: Add-Ons Compared
Canadian phone plans rarely include international calls. Compare Rogers, Virgin Plus, Bell and Freedom add-ons from C$2 a month, with C$ prices.
AT&T International Calling: Add-On Price, Rates and Cheaper Options
AT&T International Calling costs $15 a month per line. Without it, most countries cost $4 a minute. See what the add-on covers and when to skip it.
How to Call the USA from Canada: Dial 1, Not 011
To call the USA from Canada, dial 1 + area code + number, or +1 on a mobile. No 011 needed. Why it still costs extra on some plans, and the add-ons.
How to Make International Calls on iPhone: Dialing, Contacts, Costs
To make international calls on iPhone, hold 0 for +, add the country code, then the number without its leading zero. Formats, settings and costs.
US Virtual Phone Number: How to Get One From Outside the US
A US virtual phone number gives you a +1 number that rings over the internet anywhere. Compare the options, the SMS catch and how to pick an area code.
How to Call Mexico from Canada: Dialing, Costs and Time Zones
To call Mexico from Canada, dial 011 52 and the 10-digit number (or +52 on a cell). No 1, no 044. Carrier options, snowbird tips and time zones.
0345 Number Cost: What 0300, 0333 and 0344 Calls Cost
A 0345 number costs the same as calling an 01 or 02 landline and comes out of your inclusive minutes. Here is how every 03 range is charged.
How to Call the UK from Australia: 0011 44, Costs and Time Gap
To call the UK from Australia, dial 0011 44 (or +44 on a mobile) and drop the UK number's first 0. Costs, plans and the 9 to 11 hour time gap.
Phone Card for International Calls: A UK Buyer's Guide
How a phone card for international calls works in the UK: access numbers, PINs, the fees and rounding to check, and what a call costs without a card.
International Calls Plan Australia: Which Plans Include Overseas Calls
Australian mobile plans with international calls compared: Optus, Telstra, Vodafone, amaysim, Boost, ALDImobile, Belong and 365-day prepaid, in A$.
Telstra International Calls Pack: Zones, Prices and Rules
A Telstra International Calling Pack costs A$10, A$20 or A$30 a month on top of the 30 minutes in many Upfront plans. Zones, countries and the fine print.
giffgaff International Calls: Charges, Bolt-ons and Cheaper Options
giffgaff international calls are never included in plans: every call to a foreign number comes out of your credit. How it works and what to use instead.
Verizon International Calling Plans: Prices, Rates and Picks
Verizon international calling plans cost $5, $10 or $15 a month. Pay per minute starts at $0.49. Compare Global Calling, Global Choice and Plus.
How to Call Australia from Overseas: +61 Dialling and Exit Codes
To call Australia from overseas, dial your exit code or +, then 61 and the number without its first 0. Exit codes, costs and time zones.
How to Call the USA from Australia: 0011, +1 and What It Costs
To call the USA from Australia, dial 0011 1 and the 10-digit number, or +1 on a mobile. The 1800 trap, time differences and what carriers charge.
How to Keep Your US Phone Number When Moving Abroad
How to keep your US phone number when moving abroad: four options with real costs, the bank text-code catch, and what to set up before you fly.
Rogers Long Distance Plan: International Rates and Add-ons
Which Rogers long distance plan fits? Without one, India and the UK cost C$2.05/min. The C$5 and C$9 add-ons cut that to cents. Rates and fine print.
IRS International Phone Number: How to Call the IRS From Abroad
The IRS international line is +1 267-941-1000, Monday to Friday 6 a.m. to 11 p.m. Eastern. Local call times, toll-free traps and what to have ready.
How to Make Calls From an iPad (With or Without an iPhone)
You can make calls from an iPad three ways: relay calls through your iPhone, use FaceTime or apps, or call real numbers from Safari. Setup steps for each.
How to Call New Zealand from Australia: Codes, Costs and Time Zones
To call New Zealand from Australia, dial 0011 64 (or +64 on a mobile), drop the leading 0, then the number. Which plans include NZ, and what it costs.
How to Call the UK from Canada: 011 44 Dialing, Costs and Time Zones
To call the UK from Canada, dial 011 44 and the UK number without its first 0, or +44 on a cell. Plus carrier costs and Canada's new time zones.
International Calling Cards: How They Work and What to Watch For
International calling cards still work: dial an access number, enter a PIN, call abroad. Where to buy one in the US, the fees to check, and what it costs.
Optus International Calls: Add-ons, Rates and What's Included
Optus international calls are included to 35 countries on most SIM plans. Add-ons cost A$10 or A$20; pay as you go is about A$1 to A$2.50 a minute.
EE International Calls: Rates, Add-ons and the Cheapest Option
On EE pay monthly, international calls cost £4.64/min to India or the USA without an add-on. The £2.50 International Pass cuts that to 3p.
Phone Plans With International Calling: What US Carriers Include
Phone plans with international calling compared: what AT&T, Verizon, T-Mobile, Google Fi, Cricket, US Mobile and Mint include, and what add-ons cost.
How to Call the US from Mexico: Dialing Codes, Costs and Time Zones
To call the US from Mexico, dial 00 + 1 + the 10-digit number, or +1 on a cell phone. What changed in 2019, which plans include the US, and costs.
T-Mobile International Calling: Rates, Add-Ons and Real Costs
T-Mobile international calling costs $3 a minute to most countries without an add-on. Stateside International Talk is $15 a month. Rates and real costs.
5 Minute Free Call: Where to Actually Get Free Minutes in 2026
Looking for a 5 minute free call online? Here is every service that gives you free calling minutes, how many you really get, and how to make a short free call to any country right now.
How to Call a Phone from Google: Every Option Explained
Can you call a phone number from Google? Yes, several ways: Google Voice, Google Meet, Assistant, and search. Here is how each works, what it costs, and what to use instead when Google says no.
How to Call Internationally Without an App (2026 Guide)
You do not need to download anything to call another country. Browser calling, direct dialing, calling cards, and roaming-free options compared, with real costs for each.
Free Call via Internet to Mobile: What Actually Works in 2026
How to call a mobile phone over the internet, free or nearly free. The person you call needs no app and no internet. Here is every method, tested, with real limits and costs.
Free Calling Websites: 7 Sites That Let You Call Real Numbers
We tested the free calling websites that let you dial real phone numbers from a browser: PopTox, Globfone, CitrusTel, and more. Here is what each one actually gives you for free.
How to Make a Phone Call from Your Computer (PC, Mac or Laptop)
Every way to make a phone call from a computer or laptop in 2026: browser calling with no phone needed, Windows Phone Link, FaceTime relay, Google Voice. Tested steps, real per-minute costs, and a live dialer you can try on this page.
Is Skype Still Available? No. Here Is What Happened (2026)
Skype shut down on May 5, 2025, and the data export portal closed in June 2026. Here is what still works, what is gone, and what people use instead.
Boss Revolution Alternatives: What to Use When the App Won't Cooperate (2026)
Boss Revolution is genuinely good at cash top-ups and calling without internet. It has no browser calling, adds access-number surcharges, and can change rates without notice. Here are the alternatives that fit each gap.
How to Call Pakistan from the US in 2026: Rates, +92 Format and 3XX Mobile Prefixes
What it costs to call Pakistan from the United States in 2026: carrier rates vs VoIP compared, plus the +92 dialing format, what the 3XX mobile prefixes mean, and area codes for Karachi and Lahore.
VoIP Rate Comparison 2026: What Providers Actually Charge Per Minute
A side-by-side comparison of VoIP international calling rates in 2026: how providers price the same destination differently, why mobile costs more than landline, and how to compare tariffs without getting fooled by headline rates.
How to Call Someone Abroad Who Only Has a Landline (No WhatsApp, No Smartphone)
WhatsApp cannot call landlines. If your parents or relatives abroad only have a fixed line, here are the ways to reach them — ranked by cost and hassle.
Card Blocked Abroad? How to Call Chase, Bank of America, Wells Fargo or Citi From Any Country
Step-by-step guide to reaching major US banks from overseas: the international numbers that actually work, collect-call options, and the cheapest way to survive the hold queue.
Why Calling Cuba Is So Expensive — and the Cheapest Way to Do It in 2026
Cuba has some of the world's highest calling rates thanks to a state telecom monopoly. Here is why, what providers charge, and how to keep it affordable.
Google Voice Alternatives That Work Outside the US (2026)
Google Voice requires a US phone number and US presence to sign up. If you live anywhere else, these are the international calling services that actually work.
The Real Cost of 'Cheap' Calling Apps: Connection Fees, Rounding and Expiring Credit Compared
A $0.02/minute headline rate can cost triple after setup fees, minute rounding and app-store markups. We compared the fee fine print across calling apps.
How to Call a Hotel Abroad to Confirm Your Booking (Without Roaming Charges)
Booking sites lose reservations. Calling the hotel directly is the fix — here is how to dial any hotel worldwide, when to call, and how to do it for cents.
How to Call US Toll-Free (800) Numbers From Outside the US — and Why It's Not Free
US 800, 888, 877 and 866 numbers are often unreachable or charged at premium rates from abroad. Here is how to actually reach them, and what it costs.
Is WiFi Calling Free Internationally? What Verizon, T-Mobile and AT&T Actually Charge
WiFi calling is free for calls back to US numbers — but calls to foreign numbers still bill at international rates. The real fee logic, and the cheaper options.
KeKu Not Working? What Happened — and the Best Alternatives in 2026
KeKu users report vanished credit and calls that stop connecting. Here is what is going on, how to protect your balance, and the best KeKu alternatives in 2026.
Calling a Landline vs a Mobile Abroad: Why One Costs Half as Much
The same country, two different rates: calling a landline abroad is often 40-60% cheaper than calling a mobile. Here is why, with real rate examples.
PopTox Alternatives: What to Use When the 'Free' Calls Run Out (2026)
PopTox caps free calls per day, limits call length, and runs on ads. Here is what it is actually good for — and the best alternatives when a call matters.
Rebtel Alternatives for People Tired of Subscriptions (2026)
Rebtel pushes unlimited plans that auto-renew, and canceling draws complaints. If you just want to pay for the minutes you use, these alternatives fit better.
Talk360 vs Yolla vs BoraPhone: Honest Comparison
Talk360 vs Yolla vs BoraPhone: we compare pricing, call quality, features, and real user experience across three popular international calling services. No spin, just facts.
Best Browser-Based Calling Services Compared
We tested 7 browser-based calling services head to head, from free options like PopTox to premium services like BoraPhone. Here's which ones actually work and which ones waste your time.
WhatsApp Calling vs Regular International Calls: Pros, Cons, Alternatives
WhatsApp calling is free, but it can't reach landlines or businesses. We compare WhatsApp calls to regular international calls and VoIP alternatives — with honest pros, cons, and workarounds.
How to Call Overseas for Free: What Actually Works (and What Doesn't)
Can you actually call overseas for free in 2026? We tested every method and separated the truly free options from the ones that hide costs. Here's what works and what doesn't.
Google Voice vs BoraPhone: Which Is Better for International Calls?
Google Voice vs BoraPhone — an honest comparison for international calls. We compare rates, availability, features, and real limitations so you can pick the right tool.
International Calling from Your Browser: No App, No Download, Just Dial
Make international calls directly from your browser — no app, no download, no phone needed. Here's how browser-based calling works, who it's for, and why desktop users are switching.
How to Make International Calls in 2026: Free Options and What They Really Cost
Every way to make an international call in 2026, compared: which methods are genuinely free, which only look free, and what the paid options actually cost per minute. Real rates, honest trade-offs.
7 Ways to Make Free International Calls in 2026
Looking for free international calls in 2026? We tested 7 methods, from WhatsApp to browser-based VoIP, and ranked them by real-world reliability, call quality, and hidden costs.
How the Iran War Is Affecting International Calls to the Middle East (And What You Can Do)
The Iran conflict has disrupted calling and internet across the Middle East. Here's what's actually working to reach family in Iran, UAE, Lebanon, and the wider region.
How to Call India from the US in 2026: Rates, Codes and the Cheapest Way
What it actually costs to call India from the United States in 2026: carrier rates vs VoIP compared, plus the +91 dialing format, area codes for Delhi and Mumbai, and the best times to call.
How to Call Mexico from the US in 2026: Rates, +52 Format and the Cheapest Way
What it costs to call Mexico from the United States in 2026: carrier rates vs VoIP compared, plus the +52 dialing format, why the old '1' rule is gone, and whether your plan already includes Mexico.
How to Call Nigeria from the US in 2026: Rates, Codes and the Cheapest Way
What it actually costs to call Nigeria from the United States in 2026: carrier rates vs VoIP compared, plus the +234 dialing format, mobile prefixes, and best times to call Lagos and Abuja.
How to Call the Philippines from the US in 2026: Rates, +63 Format and the Cheapest Way
What it costs to call the Philippines from the United States in 2026: carrier rates vs VoIP compared, plus the +63 dialing format, Manila and Cebu area codes, and whether your US cell phone can call Philippine numbers.
How to Call the UK from the US in 2026: Rates, +44 Format and the Dropped-Zero Rule
What it costs to call the UK from the United States in 2026: carrier rates vs VoIP compared, plus the +44 dialing format, why you must drop the leading 0, and which UK numbers to avoid calling.
International Calling Checklist: Everything You Need Before Your First Call
A practical step-by-step checklist for making international calls. Covers number formats, exit codes, timezone planning, cost estimation, and choosing the right service.
International Calling Rates in 2026: Real Data from 50+ Countries
Compare international calling rates across 50+ countries. Real pricing data from BoraPhone showing how VoIP rates compare to traditional carrier charges.
VoIP vs. Traditional Carrier for International Calls: A Cost Comparison with Real Numbers
Side-by-side comparison of VoIP services vs AT&T, Verizon, and T-Mobile for international calling. Real rate data shows savings of up to 95%.
We Tested Browser-Based Calling to 10 Countries: Quality, Latency & Cost Results
Our team tested browser-based international calls to 10 countries. See real results for audio quality, latency, connection time, and cost per minute.
How to call international numbers for free in 2026 (No Credit Card Required)
Staying connected with family, friends, or business partners across the globe shouldn't cost a fortune. In 2026, the landscape of global communication has shifted. While traditional carriers still charge high roaming fees, new apps and browser-based ...
How to Call Norway from the US: The Complete Guide to an International Call to Norway from USA
Connecting with family, friends, or business partners in Scandinavia shouldn't be a hurdle. Whether you are dialing a business in Oslo or a relative's mobile phone, this guide explains exactly how to call Norway from the u.s using the correct country...
How to Call International Number Free: 2026 Complete Guide
Learn how to call international numbers free in 2026. Master exit codes, country codes, and discover how apps like BoraPhone make global calling affordable.
8 Best Skype Alternatives for International Calls in 2026
Skype shut down in May 2025. We tested 8 replacements for calling landlines and mobiles abroad, with real per-minute rates from $0.02. Updated for 2026.