• wake-up service is activated,
• follow me or follow me no answer services is activated.
• reserved ones
REAL TIME EVENT MONITORING AND PROTOCOL ANALYSIS
Introduction:
With the Real-time Protocol Analysis feature in Telesis PX24U/PX24M Hybrid IP
PBX systems, it is possible to monitor any TDM interface by decoding signaling or
protocol existing on it.
Man Machine Interface:
The Telesis XPort utility is used as the MMI (Man Machine Interface) for the
integrated Real-time Protocol Analyzer.
Capabilities:
The signaling (protocol) analyzer of the Telesis PX24U/PX24M Hybrid IP PBX
system is capable of analyzing:
• Call Control (CC) primitives
• DTMF tones
• MFR1 tones
• MFCR2 tones
• Dial pulses (decadic pulses)
• Multi-frequency shuttle tones (Pulse shuttle, R1.5)
• Multi-frequency packet tones (Pulse packet 1, 2, 3a, 3b)
• Line signaling on E&M interfaces
• Basic Rate ISDN - BRI Layer 1 (physical layer)
• Basic Rate ISDN - BRI Layer 2 (data link layer)
• Basic Rate ISDN - BRI Layer 3 (network layer)
CC primitives (CCPs) are the communication between Layer 3 Port Control and Call
Control Engine (CCE). The control and switching hardware in a system together with
its operating firmware, the Xymphony, form the CCE. The CCE provides the
functionality to initiate, manage and terminate calls through the interfaces in a Telesis
PX24U/PX24M Hybrid IP PBX system. In this communication, the required controls
for call setup, call proceeding, and call ending occur free from the signaling type.
The decoding of CCPs is done according to the ITU-T Q.931 standard. Call modeling
of all calls in Telesis PX24U/PX24M Hybrid IP PBX systems is based on ISDN
standards.
A call has two sides, one is incoming (or originating) side and the other is outgoing (or
termination) side. During a call control, CCPs are sent from the CCE to Layer 3 and
from Layer 3 to the CCE.
The CCPs are formed of Indications, Requests and Responses. CCPs define which
algorithms or operations should be executed to set up, proceed or end calls; regardless
of the port's type or physical properties.
The decoded CCPs are detailed in ITU-T Q.931. Furthermore, Telesis also added some
more primitives to make the monitoring and analysis complete such that:
• Call Control primitives from Layer 3 Port Control to the CCE:
• SetupIndication
• InfoIndication as: DialPulse, Dtmf, MF R1, MFC R2, O.BAND, From
pool, COMPANION
• DtmfReceiverTimeout
• ReleaseConfirm
• HoldIndication
• RetrieveIndication
• SuspendIndication
• ResumeIndication
• ReleaseIndication
• ConnectIndication
• AlertingIndication
• ConnectAckIndication
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