Cheaper International Calling

Make cheap international calls with crystal clear quality. Follow our simple 5-step process to start calling worldwide at competitive rates.

1
Create Account

Free registration
2
Verify Number

Enable Caller ID
3
Add Credit

Top up account
4
Choose Method

App or access number
5
Start Calling

Worldwide connections

Your Complete Calling Guide

1

Create Your Free Account

Get started with TISA international calling by creating your free customer account. No monthly fees, no contracts - just pay for what you use.

100% free account creation
No monthly subscription fees
Instant account activation
Secure online portal access
Create Free Account Now
What You'll Need
  • Valid email address
  • Your full name
  • Mobile number (for verification)
  • Your address details
Tip: Verify your mobile number to enable Caller ID features!
2

Caller ID Verification

Let people know it's really you calling. When you verify your mobile number via SMS during account setup, your international calls will show your real mobile number as the Caller ID.

Recipients see your real number
No "Unknown Number" or hidden caller
Builds trust with international contacts
People are more likely to answer
Note: Without verification, calls will show +44 1908 737 001 as the Caller ID instead of your number.
Verify Your Number
How Verification Works
  1. Enter your mobile number during registration
  2. Receive SMS verification code
  3. Enter the code to verify ownership
  4. Your number is now your Caller ID!
TISA 10:30 🔋
Your Contact
+44 7700 123456
Incoming call

Your verified number appears as Caller ID

3

Add Credit to Your Account

Top up your account with your preferred amount. Choose from multiple payment methods and add credit instantly to start calling.

£5 Credit

Perfect for trying out the service

£10 Credit

Most popular option

£20 Credit

Great for regular callers

Custom Amount

Add any amount up to £100

Add Credit Now
4

Choose Your Calling Method

Two convenient ways to make international calls - download our app for seamless calling or use our UK access number from any phone.

TISA App (Recommended)
Best Experience
  • Call directly from your address book
  • Shows your verified mobile as Caller ID
  • Crystal clear HD audio quality
  • Real-time balance and call history
iOS App Android App
Access Number
Any Phone
  • Works from any phone (mobile/landline)
  • No app download required
  • Local rate number: 01908 737 001
  • Follow simple voice prompts
Access Number:

01908 737 001

Milton Keynes local rate
Mobile App Benefits
Premium call quality with HD audio
Your verified number shows as Caller ID
Real-time balance and usage tracking
Call history and contact management
Recommended: Download the app for the best calling experience.
5

Format Numbers Correctly

Proper number formatting ensures your calls connect reliably every time. Store numbers in international format for best results.

Correct International Format:
🇮🇳
+919876543210
India mobile (recommended)
🇮🇳
00919876543210
India mobile (alternative)
🇮🇳
9876543210
Missing country code
International Format Guide
🇺🇸
USA
+15551234567
🇬🇧
UK
+447700123456
🇦🇺
Australia
+61412345678
🇩🇪
Germany
+493012345678
Important: Always include the country code (+XX or 00XX) for international calls.

Important Requirements & Restrictions

Please review these essential requirements before making calls

Minimum Balance Required
25p minimum balance

Your account must have at least 25p credit to make any international call. Ensure you have sufficient balance before dialing.

Tip: Top up with £5 or more to avoid frequent balance checks.
Blocked Number Types

The following number types are blocked and will not work:

International freephone numbers
Premium rate numbers
Shortcode numbers
Note: These restrictions help protect you from unexpected high charges.

Pro Tips for Better Calling

Expert advice for the best international calling experience

Strong Internet Connection

For app calls, use Wi-Fi or 4G/5G for crystal clear audio quality. Avoid calling on weak mobile signals.

Consider Time Zones

Check the local time in the destination country before calling. Most people prefer calls during business hours.

Quiet Environment

Call from a quiet location with minimal background noise for the clearest conversation experience.

Charged Device

Ensure your phone is charged before making long international calls to avoid unexpected disconnections.

Save Frequently Called Numbers

Store international numbers in your address book with proper formatting for quick and easy calling.

Monitor Your Balance

Check your account balance regularly and top up before it runs low to avoid call interruptions.

Ready to Start Calling Worldwide?

Join thousands of satisfied customers making cheap international calls with TISA. Create your free account today and start connecting with friends and family around the world.

  • No monthly fees or contracts
  • Competitive rates to 400+ destinations
  • Crystal clear call quality
  • UK based customer support
Create Free Account View Calling Rates

Message us on +44 753 693 9500

Secure Payment Methods

Multiple secure ways to add credit to your TISA account

Accepted Payment Methods
Visa
Mastercard
PayPal
Bank Transfer
100% Secure: All payments are processed through encrypted, PCI-compliant systems with industry-standard security protocols.
Add Credit to Your Account