Koncert allows its dialers to place calls ONLY to the phone numbers that meet the below phone format standard. Also, it ensures following the international E.164 format when placing calls to international numbers.
Local UK Phone Number Format
Below you can find the allowed phone formats for local numbers.
- <Area Code><Phone Number>
- Area Code – Maximum of 3 digits
- Phone Number – Maximum of 8 digits
For example, here’s a UK-based number in standard local formatting for London: 0200013XXXX
International Number Format
To dial international numbers (while based in the UK), the below international E.164 format should be followed:
- A + (plus) sign (replacing the International Call Prefix)
- International Country Calling Code
- Area Code
- Phone Number
For example, here’s a US number in E.164 format: +16039522500
For example, here’s a Singapore number in E.164 format: +656738XXXX
Dialing will be initiated only if the phone number meets the aforementioned international format.
Please contact Koncert Support for any questions at firstname.lastname@example.org or 603-952-2505.
NOTE: The information provided here is for informational purposes only and should not be considered as a legal advice. Please consult your legal counsel regarding compliance with relevant laws.