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

1. A method, comprising:

setting up at least a portion of a call using at least a portion of a call signaling system of a telephone network, further comprising:

determining, by at least one computing device, a domain name based on a telephone number associated with the call,

sending a first message identifying the domain name,

receiving a second message in response to the first message,

using the second message to determine an access scheme and an address suitable for accessing a resource on a packet-based network, and

using the resource to initiate the at least the portion of the call through the telephone network.

2. The method of claim 1 , wherein the packet-based network comprises an Internet Protocol (IP) network.

3. The method of claim 1 , wherein the determining comprises determining the domain name to comprise a plurality of digits of the telephone number.

4. The method of claim 1 , wherein the determining comprises parsing at least a portion of the telephone number to determine the domain name.

5. The method of claim 1 , wherein the second message comprises the access scheme.

6. The method of claim 1 , wherein the using the resource comprises using the resource to initiate the at least the portion of the call through a switched telecommunication system of the telephone network.

7. The method of claim 1 , wherein the using the resource comprises using the resource to initiate the at least the portion of the call through a bearer channel of the telephone network.

8. The method of claim 1 , wherein the telephone network comprises a switched telecommunication system.

9. 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.

10. The method of claim 9 , wherein the using the second message to route the call comprises using the second message to determine a uniform resource identifier (URI) and using the URI to route the call.

11. The method of claim 9 , wherein the bearer network is a bearer network of a switched telecommunication system.

12. 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.

13. The method of claim 12 , wherein the using the record to route the call comprises using the record to determine a uniform resource identifier (URI) and using the URI to route the call.

14. The method of claim 12 , wherein the using the first number string comprises determining the domain name to comprise a plurality of digits of the first number string.

15. The method of claim 12 , wherein the using the first number string comprises parsing at least a portion of the first number string to determine the domain name.

16. The method of claim 12 , wherein the using the record comprises:

using the record to determine an access scheme;

using the access scheme to access a resource; and

using the resource to route the call through the at least the bearer network.

17. 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.

18. The system of claim 17 , wherein the first one or more computing devices is configured to use the record to initiate the routing of the call by using the record to determine a uniform resource identifier (URI) and using the URI to initiate the routing of the call.

19. The system of claim 17 , wherein the first one or more computing devices is configured to use the number string by determining the domain name to comprise a plurality of digits of the number string.

20. The system of claim 17 , wherein the first one or more computing devices is configured to use the number string by parsing at least a portion of the number string to determine the domain name.

21. The system of claim 17 , wherein the first one or more computing devices is configured to use the record by:

using the record to determine an access scheme;

using the access scheme to access a resource; and

using the resource to initiate the routing of the call through at least the bearer network.

22. The system of claim 17 , wherein the bearer network is a bearer network of a switched telecommunication system.

23. The system of claim 17 , wherein the bearer network comprises a switch-based bearer network.

24. The system of claim 17 , wherein the first one or more computing devices are configured to use the record to initiate the routing of the call through at least a bearer channel of the bearer network.

25. The system of claim 17 , wherein the communication system comprises a switched telecommunication system.

26. The system of claim 17 , wherein the communication system is configured for datagram-based communications.

27. The system of claim 17 , wherein the telephony call signaling system is configured for datagram-based communications to initiate the routing of the call.

28. The system of claim 17 , wherein the telephony call signaling system is configured for datagram-based communications to initiate the routing of the call using a Signalling System No. Seven (“SS7”) protocol suite-based signaling network.

29. The system of claim 17 , wherein the number string comprises a telephone number.

30. 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.

31. The method of claim 30 , wherein the using the record to route the call comprises using the record to determine a uniform resource identifier (URI) and using the URI to route the call.

32. The method of claim 30 , wherein the deriving comprises determining the domain name to comprise a plurality of digits of the telephone number.

33. The method of claim 30 , wherein the deriving comprises parsing at least a portion of the telephone number to determine the domain name.

34. The method of claim 30 , wherein the using the record comprises:

using the record to determine an access scheme;

using the access scheme to access a resource; and

using the resource to route the call through the at least the bearer network.