Telecommunications network calling-party context-based identification
A control device of a telecommunications network can receive a session-initiation message and determine a context identifier associated with at least one of a calling-party identifier and a called-party identifier of the message. The control device can retrieve calling-party identification information from an information server based at least in part on the calling-party identifier and the context identifier. The control device can determine a second session-initiation message comprising the calling-party identification information based at least in part on the session-initiation message and send the second session-initiation message via the telecommunications network. An information server can receive a query and select, based at least in part on context information thereof, a calling-party identification information value associated with a calling-party identifier in the query. The information server can send, via the network, a response comprising the calling-party identification information value.
1. A method comprising, by a control device of a telecommunications network:
receiving a session-initiation message comprising a calling-party identifier and a called-party identifier;
determining a context identifier associated with at least one of the calling-party identifier and the called-party identifier;
selecting a first information server from a plurality of information servers as a selected information server in response to the context identifier indicating that the calling-party identifier and the called-party identifier are associated with a common communication-service tenant;
selecting a second information server from the plurality of information servers as the selected information server in response to the context identifier indicating that the calling-party identifier and the called-party identifier are not both associated with the common communication-service tenant;
retrieving calling-party identification information from the selected information server;
determining a second session-initiation message comprising the calling-party identification information based at least in part on the session-initiation message; and
sending the second session-initiation message via the telecommunications network.
2. The method according to claim 1 , further comprising:
sending a query to the selected information server based at least in part on the calling-party identifier; and
receiving the calling-party identification information from the selected information server in response to the query.
3. The method according to claim 1 , further comprising:
sending a query to the selected information server based at least in part on the calling-party identifier, the query comprising the context identifier; and
receiving the calling-party identification information from the selected information server in response to the query.
4. The method according to claim 3 , further comprising determining the context identifier comprising one of the called-party identifier and the calling-party identifier, wherein the query comprises the other of the called-party identifier and the calling-party identifier.
5. The method according to claim 1 , further comprising determining the context identifier based on both the calling-party identifier and the called-party identifier.
6. The method according to claim 1 , wherein:
the second session-initiation message comprises a Session Initiation Protocol (SIP) message;
the SIP message comprises a P-Asserted-Identity header having a value;
the value of the P-Asserted-Identity header is the calling-party identification information; and
the method further comprises sending the second session-initiation message to a terminating control device via the telecommunications network.
7. The method according to claim 1 , further comprising:
determining that the session-initiation message was sent by an untrusted network entity;
in response, determining the second session-initiation message excluding the calling-party identifier.
8. A control device of a telecommunications network, the control device comprising:
a communications interface communicatively connectable with a terminal of the telecommunications network; and
a control unit communicatively connected with the communications interface and configured to perform operations comprising:
receiving a session-initiation message comprising a calling-party identifier and a called-party identifier;
determining a context identifier associated with at least one of the calling-party identifier and the called-party identifier;
selecting, as a selected information server, a first information server from a plurality of information servers in response to the context identifier indicating that the calling-party identifier and the called-party identifier are associated with a common communication-service tenant;
selecting, as the selected information server, a second information server from the plurality of information servers in response to the context identifier indicating that the calling-party identifier and the called-party identifier are not both associated with the common communication-service tenant;
retrieving calling-party identification information from the selected information server via the telecommunications network based at least in part on the calling-party identifier and the context identifier;
determining a second session-initiation message comprising the calling-party identification information based at least in part on the session-initiation message; and
sending the second session-initiation message via the telecommunications network.
9. The control device according to claim 8 , the operations further comprising:
before retrieving the calling-party identification information, sending a query to the selected information server via the telecommunications network based at least in part on the calling-party identifier; and
receiving the calling-party identification information from the selected information server via the telecommunications network.
10. The control device according to claim 8 , the operations further comprising:
sending a query to the selected information server, the query comprising the context identifier; and
receiving the calling-party identification information from the selected information server in response to the query;
wherein the context identifier comprises one of the called-party identifier and the calling-party identifier and the query comprises the other of the called-party identifier and the calling-party identifier.
11. The control device according to claim 8 , wherein:
the calling-party identifier is associated with the terminal;
the second session-initiation message comprises a Session Initiation Protocol (SIP) message;
the SIP message comprises a P-Asserted-Identity header having a value;
the value of the P-Asserted-Identity header is the calling-party identification information; and
the operations further comprise sending the second session-initiation message to a terminating control device via the telecommunications network.
12. The control device according to claim 8 , wherein the called-party identifier is associated with the terminal, the operations further comprising:
determining that the session-initiation message was sent by an untrusted network entity;
in response, determining the second session-initiation message excluding the calling-party identifier.
13. One or more non-transitory computer-readable media comprising instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:
receiving, via a telecommunications network, a query comprising context information and indicating a calling-party identifier;
selecting, based at least in part on the calling-party identifier and the called-party identifier being associated with the common communication-service tenant, a first information server as a selected information server;
selecting, based at least in part on the calling-party identifier and the called-party identifier not being associated with the common communication-service tenant, a second information server as the selected information server;
retrieving calling-party identification information from the selected information server;
determining a session-initiation message comprising the calling-party identification information; and
sending, via the telecommunications network, the session-initiation message.
14. The one or more non-transitory computer-readable media according to claim 13 , wherein:
the calling-party identifier is selected from the group consisting of: an E.164 telephone number, an International Mobile Subscriber Identity (IMSI) value, a Global Title value, and a Session Initiation Protocol (SIP) Uniform Resource Identifier (URI).
15. The one or more non-transitory computer-readable media according to claim 13 , the operations further comprising:
receiving, via a user interface, a provisioning calling-party identifier and a group of provisioning party identification information value(s); and
storing the group of provisioning party identification information value(s) in association with the provisioning calling-party identifier in the one or more computer-readable media.
16. The method according to claim 1 , wherein the calling-party identifier and the called-party identifier are associated with a common communication-service tenant when a domain part of the calling-party identifier and a domain part of the called-party identifier match.
17. The method according to claim 1 , wherein retrieving the calling-party identification information from the selected information server is according to a Diameter protocol.
18. The control device according to claim 8 , wherein the calling-party identifier and the called-party identifier are associated with a common communication-service tenant when a domain part of the calling-party identifier and a domain part of the called-party identifier match.
19. The one or more non-transitory computer-readable media according to claim 13 , wherein the calling-party identifier and the called-party identifier are associated with a common communication-service tenant when a domain part of the calling-party identifier and a domain part of the called-party identifier match.
20. The one or more non-transitory computer-readable media according to claim 13 , wherein retrieving the calling-party identification information from the selected information server is based at least in part on the calling-party identifier and the context identifier.