Configure the SMSC

Finally, the SMSC should be configured to route all SMS destination addresses matching the prefix (either just the prefix, or the prefix plus a ten digit number) to the SMS Gateway Server’s SMPP server. The regular expression for such a routing will be similar to:

prefix([0-9]{10,10}){0,1}

where prefix is the value of DEFAULT_SOURCE_ADDRESS, [0-9] specifies the allowed values for the ten digit number, {10, 10} specifies that there will be a minimum of ten digits and a maximum of ten digits, and {0, 1} specifies that there can be zero or one of the 10-digit numbers.