Added Q.931 call state description comments.
git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@786 2fbb986a-6c06-0410-b554-c9c1f0a7f128
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Richard Mudgett
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pri_q931.h
227
pri_q931.h
@ -232,25 +232,220 @@ typedef struct q931_ie {
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#define Q931_IE_ESCAPE_FOR_EXT 0x7F
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/* Call state stuff */
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#define Q931_CALL_STATE_NULL 0
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#define Q931_CALL_STATE_CALL_INITIATED 1
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#define Q931_CALL_STATE_OVERLAP_SENDING 2
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/* Q.931 call states */
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/*!
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* \details
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* null state (U0):
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* No call exists.
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* \details
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* null state (N0):
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* No call exists.
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*/
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#define Q931_CALL_STATE_NULL 0
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/*!
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* \details
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* call initiated (U1):
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* This state exists for an outgoing call, when the user requests
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* call establishment from the network.
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* \details
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* call initiated (N1):
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* This state exists for an outgoing call when the network has received
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* a call establishment request but has not yet responded.
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*/
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#define Q931_CALL_STATE_CALL_INITIATED 1
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/*!
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* \details
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* overlap sending (U2):
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* This state exists for an outgoing call when the user has
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* received acknowledgement of the call establishment request which
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* permits the user to send additional call information to the network
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* in overlap mode.
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* \details
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* overlap sending (N2):
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* This state exists for an outgoing call when the network has acknowledged
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* the call establishment request and is prepared to receive additional
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* call information (if any) in overlap mode.
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*/
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#define Q931_CALL_STATE_OVERLAP_SENDING 2
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/*!
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* \details
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* outgoing call proceeding (U3):
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* This state exists for an outgoing call when the user has
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* received acknowledgement that the network has received all
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* call information necessary to effect call establishment.
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* \details
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* outgoing call proceeding (N3):
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* This state exists for an outgoing call when the network has sent
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* acknowledgement that the network has received all call information
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* necessary to effect call establishment.
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*/
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#define Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING 3
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#define Q931_CALL_STATE_CALL_DELIVERED 4
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#define Q931_CALL_STATE_CALL_PRESENT 6
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#define Q931_CALL_STATE_CALL_RECEIVED 7
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#define Q931_CALL_STATE_CONNECT_REQUEST 8
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/*!
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* \details
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* call delivered (U4):
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* This state exists for an outgoing call when the calling user has
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* received an indication that remote user alerting has been initiated.
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* \details
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* call delivered (N4):
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* This state exists for an outgoing call when the network has indicated
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* that remote user alerting has been initiated.
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*/
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#define Q931_CALL_STATE_CALL_DELIVERED 4
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/*!
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* \details
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* call present (U6):
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* This state exists for an incoming call when the user has received a
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* call establishment request but has not yet responded.
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* \details
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* call present (N6):
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* This state exists for an incoming call when the network has sent a
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* call establishment request but has not yet received a satisfactory
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* response.
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*/
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#define Q931_CALL_STATE_CALL_PRESENT 6
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/*!
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* \details
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* call received (U7):
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* This state exists for an incoming call when the user has indicated
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* alerting but has not yet answered.
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* \details
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* call received (N7):
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* This state exists for an incoming call when the network has received
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* an indication that the user is alerting but has not yet received an
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* answer.
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*/
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#define Q931_CALL_STATE_CALL_RECEIVED 7
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/*!
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* \details
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* connect request (U8):
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* This state exists for an incoming call when the user has answered
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* the call and is waiting to be awarded the call.
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* \details
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* connect request (N8):
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* This state exists for an incoming call when the network has received
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* an answer but the network has not yet awarded the call.
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*/
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#define Q931_CALL_STATE_CONNECT_REQUEST 8
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/*!
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* \details
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* incoming call proceeding (U9):
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* This state exists for an incoming call when the user has sent
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* acknowledgement that the user has received all call information
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* necessary to effect call establishment.
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* \details
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* incoming call proceeding (N9):
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* This state exists for an incoming call when the network has received
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* acknowledgement that the user has received all call information
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* necessary to effect call establishment.
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*/
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#define Q931_CALL_STATE_INCOMING_CALL_PROCEEDING 9
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#define Q931_CALL_STATE_ACTIVE 10
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#define Q931_CALL_STATE_DISCONNECT_REQUEST 11
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/*!
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* \details
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* active (U10):
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* This state exists for an incoming call when the user has received
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* an acknowledgement from the network that the user has been awarded
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* the call. This state exists for an outgoing call when the user has
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* received an indication that the remote user has answered the call.
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* \details
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* active (N10):
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* This state exists for an incoming call when the network has awarded
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* the call to the called user. This state exists for an outgoing call
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* when the network has indicated that the remote user has answered
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* the call.
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*/
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#define Q931_CALL_STATE_ACTIVE 10
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/*!
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* \details
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* disconnect request (U11):
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* This state exists when the user has requested the network to clear
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* the end-to-end connection (if any) and is waiting for a response.
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* \details
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* disconnect request (N11):
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* This state exists when the network has received a request from the
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* user to clear the end-to-end connection (if any).
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*/
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#define Q931_CALL_STATE_DISCONNECT_REQUEST 11
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/*!
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* \details
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* disconnect indication (U12):
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* This state exists when the user has received an invitation to
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* disconnect because the network has disconnected the end-to-end
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* connection (if any).
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* \details
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* disconnect indication (N12):
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* This state exists when the network has disconnected the end-to-end
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* connection (if any) and has sent an invitation to disconnect the
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* user-network connection.
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*/
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#define Q931_CALL_STATE_DISCONNECT_INDICATION 12
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#define Q931_CALL_STATE_SUSPEND_REQUEST 15
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#define Q931_CALL_STATE_RESUME_REQUEST 17
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#define Q931_CALL_STATE_RELEASE_REQUEST 19
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#define Q931_CALL_STATE_OVERLAP_RECEIVING 25
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#define Q931_CALL_STATE_RESTART_REQUEST 61
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#define Q931_CALL_STATE_RESTART 62
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/*!
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* \details
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* suspend request (U15):
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* This state exists when the user has requested the network to suspend
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* the call and is waiting for a response.
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* \details
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* suspend request (N15):
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* This state exists when the network has received a request to suspend
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* the call but has not yet responded.
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*/
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#define Q931_CALL_STATE_SUSPEND_REQUEST 15
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/*!
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* \details
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* resume request (U17):
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* This state exists when the user has requested the network to resume
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* a previously suspended call and is waiting for a response.
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* \details
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* resume request (N17):
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* This state exists when the network has received a request to resume
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* a previously suspended call but has not yet responded.
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*/
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#define Q931_CALL_STATE_RESUME_REQUEST 17
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/*!
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* \details
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* release request (U19):
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* This state exists when the user has requested the network to release
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* and is waiting for a response.
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* \details
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* release request (N19):
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* This state exists when the network has requested the user to release
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* and is waiting for a response.
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*/
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#define Q931_CALL_STATE_RELEASE_REQUEST 19
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/*!
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* \details
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* call abort (N22):
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* This state exists for an incoming call for the point-to-multipoint
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* configuration when the call is being cleared before any user has been
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* awarded the call.
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*/
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#define Q931_CALL_STATE_CALL_ABORT 22
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/*!
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* \details
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* overlap receiving (U25):
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* This state exists for an incoming call when the user has acknowledged
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* the call establishment request from the network and is prepared to
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* receive additional call information (if any) in overlap mode.
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* \details
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* overlap receiving (N25):
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* This state exists for an incoming call when the network has received
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* acknowledgement of the call establishment request which permits the
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* network to send additional call information (if any) in the overlap
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* mode.
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*/
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#define Q931_CALL_STATE_OVERLAP_RECEIVING 25
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/*!
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* \details
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* call independent service (U31): (From Q.932)
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* This state exists when a call independent supplementary service
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* signalling connection is established.
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* \details
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* call independent service (N31): (From Q.932)
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* This state exists when a call independent supplementary service
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* signalling connection is established.
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*/
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#define Q931_CALL_STATE_CALL_INDEPENDENT_SERVICE 31
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#define Q931_CALL_STATE_RESTART_REQUEST 61
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#define Q931_CALL_STATE_RESTART 62
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/* EuroISDN */
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