Explicación trazas telefonia rdsi

C U S T O M E R S U P P O R T B U L L E T I N ISDN Cause Codes (Codes Returned by the Telephone Network)
21 February, 2001 When there is an ISDN problem in the network, a phrase appears in the ISDN protocol log that communicates information about the cause of the trouble. These “Cause Values” are messages generated by the network, which the Telos Equipment translates to the associated phrases.When possible, we use those suggested by the Bellcore standard. Note that in some cases there may be more than one meaning. This can frequently be evaluated by whether the message has been received by the calling party or the called party. CLASS 1.1 (normal) Cause No. 1 - Check number, redial (unallocated number) This cause indicates that the called party cannot be reached because, although thecalled party number is in a valid format, it is not currently allocated (assigned). Cause No. 2 - No route to network /Prefix 0 dialed in error This cause indicates that the equipment sending this cause has received a request to route the call through a particular transit network which it does not recognize. The equipment sending this cause does not recognize the transit network either because thetransit network does not exist or because that particular transit network, while it does exist, does not serve the equipment which is sending this cause. or This cause indicates the prefix 0 is invalid for the entered number Cause No. 3 - No route to dest./Prefix 1 dialed in error This cause indicates that the called party cannot be reached because the network through which the call has been routeddoes not serve the destination desired. This cause is supported on a network-dependent basis. or A 1 was dialed when not required. Redial without the 1.

2101 Superior Avenue, Cleveland, OH 44114 USA • +1 (216) 241-7225 • Fax +1 (216) 241-4103 Johannistr.6 D85354 Freising, Germany • +49.8161.42467 • Fax +49.8161.42402

Cause No. 4 – No prefix 1/Special Information Tone The prefix 1 is notrequired for this number or This cause indicates that the called party cannot be reached for reasons that are of a long term nature and that the special information tone should be returned to the calling party. Cause No. 5 – Misdialed trunk prefix (National use) This cause indicates the erroneous inclusion of a trunk prefix in the called party number. Cause No. 6 – Channel unacceptable This causeindicates a called user cannot negotiate for a B-channel other than that specified in the SETUP message. Cause No. 7 – Call awarded and being delivered on an established channel This call indicates the user has been awarded the incoming calls, and that call is being connected to a channel already established to that user for similar calls (e.g. packet-mode, X.25 virtual calls, etc). Cause No. 8 –Call is proceeding/Preemption Call in process, please standby. or This cause indicates a call has been preempted. Cause No. 9 – Preemption, reserved This cause indicates a calls has been preempted due to the circuit being reserved for reuse. Cause No. 14 – Excess digits received, call is proceeding More digits were dialed than expected. Called number has been truncated to the expected number.

2101Superior Avenue, Cleveland, OH 44114 USA • +1 (216) 241-7225 • Fax +1 (216) 241-4103 Johannistr.6 D85354 Freising, Germany • +49.8161.42467 • Fax +49.8161.42402

Cause No. 16 - Far end disconnect (Normal call clearing) This cause indicates that the call is being cleared because one of the users involved in the call has requested that the call be cleared. Under normal situations, the source ofthis cause is not the network. Cause No. 17 - Busy, try again later (User busy) This cause is used to indicate that the called party is unable to accept another call because the user busy condition has been encountered. This cause value may be generated by the called user or by the network. In the case of user determined user busy it is noted that the user equipment is compatible with the call....