Method for accessing service resource items that are for use in a telecommunications system

A method, comprising:

• receiving, in a telephony call signaling system, a request for a call that identifies a first telephone number;
• and
• in response to the request:
• determining, by the call signaling system, a domain name based on the first telephone number,
• sending, by the call signaling system, a first message identifying the domain name,
• receiving, by the call signaling system, a second message in response to the first message, and
• using, by the call signaling system, the second message to route the call through at least a bearer network.

A method, comprising:

• receiving, in a telephony call signaling system, a request for a call that identifies a first number string;
• and
• in response to the request:
• using, by the call signaling system, the first number string to determine a domain name,
• providing, by the call signaling system, the domain name to a database,
• receiving, by the call signaling system, a record in response to the domain name that was provided to the database, and
• using, by the call signaling system, the record to route the call through at least a bearer network.

A system, comprising:

• a first one or more computing devices of a telephony call signaling system of a communication system, the first one or more computing devices configured to:
• in response to a request for a call that identifies a number string, use the number string to determine a domain name;
• and
• use a record to initiate routing of the call through at least a bearer network;
• and
• a second one or more computing devices configured to use the domain name to determine the record.

A method, comprising:

• performing, by a telephony call signaling system of a communication system:
• in response to a request for a call that identifies a telephone number, deriving a domain name from the telephone number;
• providing the domain name to a database;
• receiving a record in response to the domain name that was provided to the database;
• and
• using the record to route the call through at least a bearer network.