SIP:Alert-Info header: Difference between revisions
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=Inbound Calls= | |||
== Alert-Info is handled when received in INVITE == | == Alert-Info is handled when received in INVITE == | ||
It's for endpoints connected to a non-innovaphone PBX that sends Alert-Info in INVITE.<br> | It's for endpoints connected to a non-innovaphone PBX that sends Alert-Info in INVITE.<br> | ||
The heuristic method | The heuristic method or processing Alert-Info is as follows: | ||
An incoming call is tagged as "internal" if either: | An incoming call is tagged as "internal" if either: | ||
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Otherwise an incoming call is tagged as "external". | Otherwise an incoming call is tagged as "external". | ||
== | =Outbound Calls= | ||
== Alert-Info when sending INVITE == | == Alert-Info when sending INVITE == | ||
The innovaphone PBX '''does not''' send Alert-Info in INVITE, since there is no specification of Alert-Info beyond its basic syntax and interpretation is manufacturer specific. | The innovaphone PBX '''does not''' send Alert-Info in INVITE, since there is no specification of Alert-Info beyond its basic syntax and interpretation is manufacturer specific. | ||
== Alert-Info is handled when received in provisional response == | |||
An outgoing call is tagged as "queued" (call-waiting) if "urn:alert:service:call-waiting" is present in Alert-Info header. | |||
[[Category:Faq|{{PAGENAME}}]] | [[Category:Faq|{{PAGENAME}}]] | ||
Revision as of 10:59, 22 June 2016
Inbound Calls
Alert-Info is handled when received in INVITE
It's for endpoints connected to a non-innovaphone PBX that sends Alert-Info in INVITE.
The heuristic method or processing Alert-Info is as follows:
An incoming call is tagged as "internal" if either:
- parameter "call-type" is "internal"
- parameter "info" is "alert-internal"
- uri contains "Bellcore-dr1"
- uri contains "internal" (e.g. urn:alert:source:internal (RFC-7462))
An incoming call is tagged as "re-call" (return from failed blind transfer) if either:
- parameter "call-type" is "callback"
- parameter "info" is "alert-recall" or "alert-community1"
- uri contains "Bellcore-dr3/"
- uri contains "service:recall" (e.g. urn:alert:service:recall:transfer (RFC-7462))
An incoming call is tagged as "emergency" if either:
- parameter "info" is "alert-emergency"
Otherwise an incoming call is tagged as "external".
Outbound Calls
Alert-Info when sending INVITE
The innovaphone PBX does not send Alert-Info in INVITE, since there is no specification of Alert-Info beyond its basic syntax and interpretation is manufacturer specific.
Alert-Info is handled when received in provisional response
An outgoing call is tagged as "queued" (call-waiting) if "urn:alert:service:call-waiting" is present in Alert-Info header.