Examples of regular expression match and replace for external trunk number transformation

AI-generated summary

Genesys Cloud provides the ability to transform outbound call numbers using regular expressions. Examples include removing the '+' symbol, adding trunk codes, and adding exit codes based on the destination country. Specific use cases are provided for the United States and United Kingdom to handle the lack of E.164 support by removing country codes and adding appropriate trunk and exit codes. Key technical details involve using regex match and format fields to search for patterns in the number and reformat it as needed for each country.

As described in Transform outbound addresses with regular expressions, you can use regular expressions to transform the number sent on an outbound call. Here you’ll find some examples and descriptions that will show you how to use regular expressions to accomplish this task. In addition to our examples, you can investigate the Regular Expressions 101 website.

Note: You can only use regular expressions to transform the number sent on an outbound call if you are using a BYOC Cloud trunk or a BYOC Premises external trunk. For more information, see About BYOC Cloud or About BYOC Premises.

Example 1: Remove the + from an addressClick to expand

regex match ^(sip[s]?:|tel:)(\+)(.*)

regex format $1$3

For example, this regex changes sip:+17165551212@domain.com to sip:17165551212@domain.com.

The regex match goes into the Match Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.
The regex format goes into the Format Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.

Example 2: Lack of E.164 support for the United StatesClick to expand

US Country Code 1

Trunk Code 1

Exit Code 011

For the U.S. numbers, the regex to remove the + and add the trunk code 1.

Regex match ^(sip[s]?:|tel:)(\+)(.*)

Regex format ${1}1${3}

For example, this regex changes sip:+17165551212@domain.com to sip:117165551212@domain.com.

For the international numbers, the regex to remove the + and add exit code 011

Regex match ^(sip[s]?:|tel:)(\+)(.*)

Regex format ${1}011${3}

For example, this regex changes sip:+443035551212@domain.com to sip:011443035551212@domain.com.

The regex matches go into the Match Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.
The regex formats go into the Format Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.

Example 3: Lack of E.164 support for the United KingdomClick to expand

United Kingdom (UK) Country Code 44

Trunk Code 0

Exit Code 00

For national numbers, the regex to remove the +44 and add the trunk code 0.

Regex match ^(sip[s]?:|tel:)(\+)(44)(.*)

Regex format ${1}0${4}

For example, this regex changes sip:+443035551212@domain.com to sip:03035551212@domain.com.

For the international numbers, the regex to remove the + and add exit code 00.

Regex match ^(sip[s]?:|tel:)(\+)(.*)

Regex format ${1}00${3}

For example, this regex changes sip:+17165551212@domain.com to sip:0017165551212@domain.com.

The regex matches go into the Match Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.
The regex formats go into the Format Regular Expression fields for both the Calling Address Transformation and the Called Address Transformation.

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Examples of regular expression match and replace for external trunk number transformation