Datasheet

14 Appendix
140 ARGUS 141
F) VoIP SIP status codes

SIP requests:
The six basic requests / methods:
INVITE Invite a user to a session (call - initiates a session)
ACK Acknowledge an INVITE request
BYE Terminate a session (hangup)
CANCEL Terminates the setup of a connection
REGISTER Provides subscriber data (host name and IP address)
OPTIONS Supplies information regarding the functions supported by the other SIP
telephone
SIP responses:
SIP responses are answers to SIP requests. There are six basic types of SIP responses
with numerous sub-responses:
1xx Informational responses (180 indicates for example that the phone of the
party called is ringing)
2xx Reports that the request has been successful
3xx Redirection responses
4xx Client failure responses
5xx Server failure responses
6xx Global failure responses
Display
on
ARGUS:
Code No.
Meaning Explanation
100 Trying The ARGUS is attempting to setup a call.
180 Ringing The phone at the other end is ringing.
181 Call Being Forwarded The call is being forwarded.
182 Call Queued The call is in a wait loop.
183 Session Progress The call is being setup.
200 OK Everything is all right.
202 Accepted Connection has been accepted.