Incorrect number formatting is the #1 reason international calls fail.

Always dial numbers in full international format:

✔ Start with + (recommended)
✔ Include the country code
✔ Include the area/city code (for landlines)
✔ Remove the leading 0
✔ Do not use spaces or symbols when saving contacts

📌 Use only one international prefix.
Do not combine + and 00.

Use one international access code:

Then dial:

Local format (works only inside the country):

Correct international format:

What changed:

💡 Always save numbers exactly like this in your phone.

A number saved in local format may work inside one country:

But fail when calling internationally.

It must be saved as:

If your contacts are not saved in full international format, calls are likely to fail.

Talk360 dials the number exactly as it is saved in your phone.

If the saved number:

The call may not connect internationally.

1️⃣ Open your phone’s Contacts app
2️⃣ Edit the number
3️⃣ Replace it with the full international format (example: +447123456789)
4️⃣ Save the contact
5️⃣ Reopen Talk360 and try again

If the number already starts with +CountryCode, no change is needed.

Landlines use the same international format as mobile numbers.

You must include:

Local Dutch landline:

Correct format:

If a landline call fails, the area/city code is usually missing.

❌ Missing country code
❌ Keeping the leading 0
❌ Missing area code (landlines)
❌ Saving numbers only in local format
❌ Combining + and 00
❌ Using spaces, brackets, or symbols

After dialing a correctly formatted number:

If you hear ringing, your number format is correct.

International calls only work when numbers are saved and dialed in full international format.

Always use:

Most call failures are resolved instantly by correcting the number format.