IBM SC30-3681-08 manual Sample Isdn Congurations, Frame Relay over Isdn Conguration

Using ISDN

Table 79. ISDN Q.931 Cause Codes (continued)

Code	Cause
82	Identi®ed channel does not exist
83	A suspended call exists, but this call identity does not
84	Call identity in use
85	No call suspended
86	Call having the requested call identity has been cleared
88	Incompatible destination
91	Invalid transit network selection
95	Invalid message, unspeci®ed
96	Mandatory information element is missing
97	Message type nonexistent or not implemented
98	Message not compatible with call state or message type nonexistent or not
	implemented
99	Information element nonexistent or not implemented
100	Invalid information element contents
101	Message not compatible with call state
102	Recovery on timer expiry
111	Protocol error, unspeci®ed
127	Interworking, unspeci®ed

Sample ISDN Con®gurations

The following topics show several typical ISDN con®gurations.

Frame Relay over ISDN Con®guration

Figure 36 shows how you can connect to a Frame Relay network through an ISDN network. In this con®guration, you set the data link on your dial circuits to Frame Relay.

Note: Dial circuits default to point-to-point (PPP) protocol. To change the protocol to Frame Relay, enter set data-link fr at the Config> prompt. A connection

will only be usable if the data link on both ends matches (for example, either FR to FR, or PPP to PPP).

	N
ISDN	Frame	Router 2
	Relay

Router 1

Figure 36. Frame Relay over ISDN Con®guration

Note: N could be either an ISDN TA connected to the FR switch, or an ISDN card in a FR switch.

616MRS V3.2 Software User's Guide