Farallon Communications 412, 612 manual Netopia Isdn Modem User’s Guide

B-6 Netopia ISDN Modem User’s Guide

Cause No. 81: invalid call reference value. The equipment sending this cause has received a message with a call reference which is not currently in use on the user-network interface.

Cause No. 82: identified channel does not exist. The equipment sending this cause has received a request to use a channel not activated on the interface for a call. For example, this cause is generated if a user has subscribed to the channels numbered from 1 to 12 on a primary rate interface and the user equipment or the network attempts to use channels 13 through 23.

Cause No. 83: a suspended call exists, but this call identity does

not. A call resume has been attempted with a call identity which differs from that in use for any presently suspended call(s).

Cause No. 84: call identity in use. The network has received a call-suspend request. The call-suspend request contained a call identity (including the null call identity) which is already in use for a suspended call within the domain of interfaces over which the call might be resumed.

Cause No. 85: no call suspended. The network has received a call resume request with a call identity information element which presently does not indicate any suspended call within the domain interfaces over which calls may be resumed.

Cause No. 86: call having the requested call identity has been

cleared. The network has received a call resume request with a call identity information element which once indicated a suspended call, however, that suspended call was cleared while suspended (either by a network time-out or by a remote user).

Cause No. 88: incompatible destination. The equipment sending this cause has received a request to establish a call that has a low-layer compatibility, high-layer compatibility, or other compatibility attribute (for example, data rate) which cannot be accommodated.

Cause No. 91: invalid transit network selection. A transit network identification was received which is of an incorrect format as defined in Annex C/Q.931.

Cause No. 95: invalid message, unspecified. This cause is used to report an invalid message event only when no other cause in the invalid-message class applies.