Pstn Error Codes
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Information Resolved comments Link to this Page… View in Hierarchy View Source Export to PDF Export to Word Telephony Cards PRI Lines and Cards PRI Cause Codes Skip to end of metadata Created by Tony Lewis, last modified by Kate Bernard on May 15, 2015 Go to start non-existent cug of metadata PRI Cause CodesBelow is a list of all the current error codes the make
Cause Code 31
up the PRI ISDN standard. These codes are provided by your phone carrier to your PBXact system. They are here mainly for reference so q.850 cause codes when a problem arises on your PRI, you can get an understanding of what the cause code means. The cause code will be provided to you by a PBXact support technican when troubleshooting a PRI issue so you can provide this sip cause codes information back to your carrier.Cause No. 0This is usually given by the router when none of the other codes apply. This cause usually occurs in the same type of situations as cause 1, cause 88, and cause 100.Cause No. l - Unallocated (unassigned) number.This cause indicates that the destination requested by the calling user cannot be reached because, although the number is in a valid format, it is not currently assigned (allocated).What it usually means:The SPIDS may be incorrectly
Cause Code Technologies
entered in the router or the Telco switch, giving a SPID failure in the router logs.The ISDN phone number being dialed by the router is invalid and the telco switch cannot locate the number to complete the call, as it is invalid.On long distance calls, the call cannot be properly routed to its destination.Cause No. 2 - No route to specified transit network (national use).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 the transit network does not exist, or because that particular transit network does not serve the equipment which is sending this cause.Cause No. 3 - No route to destination.This cause indicates that the called party cannot be reached because the network through which the call has been routed does not serve the destination desired. This cause is supported on a network dependent basis.Cause No. 4 - send special information tone.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. This number is snipped from the dialed numb
Cause No. 2 - No route to specified transit network (national use) [Q.850] This cause indicates that the equipment sending this cause q931 cause codes has received a request to route the call through a particular transit q.850 cause=47 network which it does not recognize. The equipment sending this cause does not recognize the transit network either
Cause Code 0
because the transit network does not exist or because that particular transit network. While it does exist. does not serve the equipment which is sending this cause. Cause No. 3 http://wiki.freepbx.org/display/PC/PRI+Cause+Codes - No route to destination [Q.850] This cause indicates that the called party cannot be reached because the network through which the call has been routed does not serve the destination desired. This cause is supported on a network dependent basis. Cause No. 4 - send special information tone [Q.850] This cause indicates that the called party cannot be reached for http://www.cnes.com/causecodes.html 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) [Q.850] This cause indicates the erroneous inclusion of a trunk prefix in the called party number. This number is to sniped from the dialed number being sent to the network by the customer premises equipment. Cause No. 6 - channel unacceptable [Q.850] This cause indicates that the channel most recently identified is not acceptable to the sending entity for use in this call. Cause No. 7 - call awarded. being delivered in an established channel [Q.850] This cause indicates that the user has been awarded the incoming call and that the incoming call is being connected to a channel already established to that user for similar calls (e.g. packet-mode x.25 virtual calls). Cause No. 8 - preemption [Q.850] This cause indicates the call is being preempted. Cause No. 9 - preemption - circuit reserved for reuse [Q.850] This cause indicates that the call is being preempted and the circuit
(*) 17 – user busy 486 Busy here 18 – no user responding 408 Request Timeout 19 – no answer from the user 480 Temporarily unavailable 20 – subscriber absent 480 Temporarily unavailable 21 – http://www.dialogic.com/webhelp/img1010/10.5.1/webhelp/General_Reference/def_sip-ss7_cc.htm call rejected 403 Forbidden (+) 22 – number changed (s/ o diagnostic) 410 Gone 22 – number changed ( w/ diagnostic) 301 Moved permanently 23 – redirection to new destination 410 Gone 26 – non-selected user clearing 404 Not Found (=) 27 – destination out of order 502 Bad Gateway 28 – address incomplete 484 Address incomplete 29 – facility rejected 510 Not implemented 31 – normal unspecified 480 Temporarily unavailable Resource unavailable 34 – no circuit available cause code 503 Service unavailable 38 – network out of order 503 Service unavailable 41 – temporary failure 503 Service unavailable 42 – switching equipment congestion 503 Service unavailable 47 – resource unavailable 503 Service unavailable Service or option not available 55 – incoming calls barred within CUG 403 Forbidden 57 – bearer capability not authorized 403 Forbidden 58 – bearer capability not presently available 503 Service unavailable 65 – bearer capability not implemented 488 Not Acceptable here 70 – pstn error codes Only restricted digital information bearer capability is available (National use) 488 Not Acceptable here 79 – service or option not implemented 501 Not implemented Invalid message 87 – user not member of CUG 403 Forbidden 88 – incompatible destination 503 Service unavailable 102 – Call Setup Time-out Failure 504 Gateway timeout 111 – Protocol Error Unspecified 500 Server internal error Interworking 127 – Internal Error - interworking unspecified 500 Server internal error 500 – Server internal error (default) (*) ISDN Cause 16 will usually result in a BYE or CANCEL (+) If the cause location is ‘user’ than the 6xx code could be given rather than the 4xx code. the cause value received in the H.225.0 message is unknown in ISUP, the unspecified cause value of the class is sent. (=) ANSI procedure SIP Status Code to ISDN Cause Code Mapping Response received Cause value in the REL 400 – Bad Request 41 – Temporary failure 401 – Unauthorized 21 – Call rejected (*) 402 – Payment required 21 – Call rejected 403 – Forbidden 21 – Call rejected 404 – Not Found 1 – Unallocated number 405 – Method not allowed 63 – Service or option unavailable 406 – Not acceptable 79 – Service/option not implemented (+) 407 – Proxy authentication required 21 – Call rejected (*)