used by Configuring prefix-based call recording and Configuring prefix-based callback number selection
Your prefix can contain as many digits as you want. You can specify the country code, area code, or even the entire telephone number. If the dialed number matches more than one mapping, ContactWorld uses the most specific mapping. For example, you create mappings for the prefixes +44, +4420 and +44 20 7946 0900. When your agent clicks to dial +44 20 7946 0900, ContactWorld uses the mapping record for +44 20 7946 0900.
ContactWorld will only find your prefix mapping records if you use exactly the same format as the dialed telephone number. For example, if you create a prefix mapping record with the prefix in national format (such as 020) but the dialed number is in E.164 format (such as +4420), ContactWorld cannot find your mapping record. If you cannot be sure which format the dialed numbers use, create mappings for multiple formats: 020, +4420, 004420, and so on.
Special characters in dialed numbers are ignored. For example, ContactWorld will locate a prefix mapping of +44 or +4470 when an agent clicks to dial +(44) 7-000.000.000.