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Server Alarms - Avaya Support

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Cause Value 102<br />

Event Data<br />

● Call state problems are reported with STATUS messages. The equipment sending the<br />

Cause Value uses the CALL STATE IE of the STATUS message to indicate the call state.<br />

To determine the call state of the other end of the interface, run the message sequence of<br />

the call through the SDL flow charts of the appropriate side (user or network) and the<br />

appropriate protocol (TR41449/41459, TR1268, A211 etc.). If the call state at the other end<br />

of the interface does not agree with that reported in the STATUS message and both sides<br />

are already running the same protocol, then a problem with the implementation of the state<br />

machine exists on either side.<br />

Problems have been revealed with the state machine implementations of some of the CO<br />

switches for different protocols, and the state machine problems in the CO switches are<br />

most likely not going to be corrected. Communication Manager has not shown any<br />

problems with its state machine implementations for the different protocols.<br />

Change Communication Manager administration to change the message sequence of the<br />

call scenario causing the error, and help solve state machine implementation problems. For<br />

example:<br />

- change the inter-working message on the DS1 form from PROGRESS to ALERTING<br />

- change the “wait” steps in vectors to be “i-silent” so that they do not generate extra<br />

PROGRESS messages in the calling message sequence.<br />

[0x66/0xE6] -<br />

Recovery on timer Expiry<br />

The equipment sending this Cause Value sent or received a Layer 3 Q.931 message. Sending<br />

or receiving this message has initiated a Layer 3 timer that has expired. This Cause Value is<br />

being generated in conjunction with Q.931 protocol error handling procedures.<br />

This Cause Value has local significance only. The ISDN network between the user and the<br />

equipment generating the Cause Value might:<br />

● Send no cause indication through the network<br />

● Send a more generic Cause Value through the network<br />

Communication Manager logs timer expiry errors in the error log against the signaling group of<br />

the D-channel where the error occurred. The signaling group (ISDN-SGR) error is Error Type 1<br />

and the Aux Data contains the identifier of the Layer 3 timer that expired.<br />

Communication Manager does not generate the diagnostic information for the Cause Value IE.<br />

Communication Manager Release 5.0 Issue 4 January 2008 195

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