I have a problem with a UC540 connected to the BRI network. When some partners call the central number or some extensions, the receive a "busy" signal. The isdn q931 debug log shows the following (just an example)
Paolo has pretty much given you the answer, but it should be noted that your ISDN is working as it should be, just that the incoming calling is not pointing to a valid DN on the system somewhere, please check your incoming call programming and make sure you either have the incoming calls going to a reception extension number, direct to the staff phone extension number, or, to an AA/B-ACD.
A call flow topology would be very helpful so we know what you are trying to achieve as well
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thank you for your support, even if my mail was rather short and cryptical ;-)
Before going into details: The core problem seems to be that some calls from some partners do reach the central number or an extension. "Normally" all extensions and the central (-0) can be reached. But there is a small number of calling parties that can not call the central number or an extension. The partners are always the same, but they use different carriers. The problem is persistent - if you belong to these partners, you can not reach the numbers.
The problem is not limited to one of the three existing BRI interfaces - all are effected.
So, now here is the config (in parts):
voice translation-rule 1
rule 1 /^93211$/ /22/
rule 2 /^932110$/ /22/
voice translation-rule 2
rule 5 // /000/ type international unknown
rule 6 // /00/ type national unknown
rule 7 // /0/ type subscriber unknown
voice translation-rule 3
rule 5 /^000/ // type any international plan any isdn
rule 6 /^00/ // type any national plan any isdn
rule 7 /^0/ // type any subscriber plan any isdn
voice translation-rule 4
rule 15 // //
voice translation-rule 5
rule 1 /^932110/ /22/
voice translation-rule 6
rule 1 /9321110/ /10/
rule 2 /9321111/ /11/
rule 3 /9321112/ /12/
-- Other translation-rules following, but similar to the ones above.
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