
Q931 messages for circuit mode connections
Call Establishment Messages
Message Significance Direction Function
ALERTING global both Indicates that user alerting has begun
CALL PROCEEDING local both Indicates that call establishment has
been initiated
CONNECT global both Indicates call acceptance by called TE
CONNECT local both Indicates that user has been
ACKNOWLEDGE awarded the call
PROGRESS global both Reports progress of a call
set-up global both Initiates call establishment
set-up local both Indicates that call establishment
ACKNOWLEDGE has been initiated but requests
more information
Jamadagni H S DC/V1/2004 32
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