SIP Registration
From TBwiki
(Difference between revisions)
William Wong (Talk | contribs) |
William Wong (Talk | contribs) |
||
| Line 4: | Line 4: | ||
SIP registrars are logical elements, and are commonly co-located with SIP proxies. But it is also possible and often good for network scalability to place this location service with a redirect server. | SIP registrars are logical elements, and are commonly co-located with SIP proxies. But it is also possible and often good for network scalability to place this location service with a redirect server. | ||
| + | |||
| + | == Polling == | ||
| + | * Tmedia SIP polling is using SIP OPTIONS method to "poke" a SIP Network Access Point (NAP) to see if it's alive or not, that is, NAP availability | ||
| + | * Upon a response from the SIP NAP, Tmedia will determine whether to mark the NAP as up | ||
| + | * This is true, only if the option "Map any response to available status" is checked, otherwise, only a 200 OK to a SIP OPTIONS will bring the NAP up | ||
| + | * With "Map any response to available status" checked, 200-600 answer response can return from OPTIONS request, with these response the NAP is considered up | ||
| + | * The first time a SIP NAP is added in configuration and configuration activated, Tmedia polls at 5s, after that and general use is polling at 60s | ||
| + | |||
| + | |||
Revision as of 00:44, 21 March 2016
Contents |
SIP Registrar
A registrar is a SIP endpoint that accepts REGISTER requests and places the information it receives in those requests into a location service for the domain it handles. The location service links one or more IP addresses to the SIP URI of the registering agent. The URI uses the sip: scheme, although other protocol schemes are possible, such as tel:. More than one user agent can register at the same URI, with the result that all registered user agents receive the calls to the URI.
SIP registrars are logical elements, and are commonly co-located with SIP proxies. But it is also possible and often good for network scalability to place this location service with a redirect server.
Polling
- Tmedia SIP polling is using SIP OPTIONS method to "poke" a SIP Network Access Point (NAP) to see if it's alive or not, that is, NAP availability
- Upon a response from the SIP NAP, Tmedia will determine whether to mark the NAP as up
- This is true, only if the option "Map any response to available status" is checked, otherwise, only a 200 OK to a SIP OPTIONS will bring the NAP up
- With "Map any response to available status" checked, 200-600 answer response can return from OPTIONS request, with these response the NAP is considered up
- The first time a SIP NAP is added in configuration and configuration activated, Tmedia polls at 5s, after that and general use is polling at 60s
Configuration
- Allocating a SIP NAP Configuration v2.9
- Allocating a SIP NAP Configuration v2.8
- Allocating a SIP NAP Configuration v2.7
- Allocating a SIP NAP Configuration v2.5
