1 tosca_definitions_version: tosca_simple_yaml_1_0_0
4 Interrogating-CSCF (I-CSCF) is a SIP function located at the edge of an administrative domain.
5 Its IP address is published in the Domain Name System (DNS) of the domain
6 (using NAPTR and SRV type of DNS records), so that remote servers can find it,
7 and use it as a forwarding point (e.g., registering) for SIP packets to this domain.
8 It queries the HSS to retrieve the address of the S-CSCF and assign it to a user performing SIP
9 registration. It also forwards SIP request or response to the S-CSCF.
13 derived_from: tosca.nodes.SoftwareComponent
16 type: tosca.capabilities.Endpoint
17 relationship: tosca.relationships.ConnectTo
18 occurrences: [0, UNBOUNDED]
19 description: Connection with one ore more P-CSCF functions
22 capability: tosca.capabilities.Endpoint
23 node: att.nodes.ims.HSS
24 relationship: tosca.relationships.ConnectsTo