Valid phone numbers for SCA

For optimal performance of Secure Contacts App (SCA), particularly for incoming caller identification, it is important that stored phone numbers are in the correct international format. Proper formatting ensures accurate recognition across regions and systems, avoiding errors in caller identification.

International Phone Number Format

SCA uses the ITU-T E.164 international standard to normalize and verify phone numbers. This format ensures each number is globally unique and correctly routed for calls.

Key features of E.164 format:

• Starts with a plus sign (+)

• Includes the country code

• Contains the subscriber number, including area code if applicable

Examples:

• Local format: 020 7946 0958 (UK)

• E.164 format: [phone]

Phone numbers that cannot be automatically completed into a valid international format are considered invalid. In this case, depending on the current location, the number may still be used for outgoing calls, but will not be recognized for identifying incoming callers.

Optional Configuration Parameters

SCA provides optional parameters to help handle numbers that are not in the correct format:

• PhoneNumberParseCountryCode_Option: Defines a 2-letter country code (e.g., DE or US) to automatically format numbers without a country code.

  • Default: false (no default country code applied)

• PhoneNumberIngoreInvalid_Option: Filters out numbers that cannot be normalized to E.164 format, ensuring only valid numbers are processed for caller identification.

  • Default: false (invalid numbers are not filtered by default)

These parameters can mitigate issues with incorrectly stored numbers but using the correct format from the start is always recommended.

Instructions on how to apply SCA App Configuration settings are available here

Examples of valid international phone numbers:

phone numbers in data source	SCA parsed & formated	is valid
[phone]	[phone]	yes
[phone]	[phone]	yes
004930124711372	[phone]	yes
[phone]	[phone]	yes
001 646 940 8602	[phone]	yes
001-410-555-1331	[phone]	yes
[phone]	[phone]	yes
[phone]	[phone]	yes
14045551337	[phone]	yes
491734532510	[phone]	yes

Examples of invalid phone numbers:

phone numbers in data source	SCA parsed & formated	is valid
[phone]	[phone]	no
410 555-1331	410 555-1331	no
914260693	914260693	no
(0)89 56164193	(0)89 56164193	no
01725570802	01725570802	no
313-433-723	313-433-723	no
7321-334	7321-334	no
2001	2001	no

Integration with Data Sources

SCA integrates with various data sources such as AAD, GAL, APC, D365, DVRS, ABS, and SMC. To maintain consistent caller identification, phone numbers in these sources should also follow the international format.

Summary

• Correctly formatted phone numbers are critical for reliable incoming caller identification.

• SCA normalizes and validates numbers according to ITU-T E.164 standards.

• Optional parameters help handle improperly formatted numbers but do not replace storing numbers correctly.

• Consistency across integrated data sources ensures accurate recognition and seamless functionality.