04-23-2015 05:28 AM - edited 03-21-2019 08:37 AM
Hello
We have installed a UC540-BRI system and it will not make inbound/outbound calls via ISDN 2 BRI.
ISDN status looks fine but it does not work, inbound are generally unobtainable/engaged and outbound display "Unknown Number".
British Telecom confirm that the lines are fine but I am not convinced we are using the right ISDN setting and seems nobody at British Telecom know either!
Below is the current ISDN status along with the configuration of each interface.
Thanks
Global ISDN Switchtype = basic-net3
ISDN BRI0/1/0 interface
dsl 2, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 2 CCBs = 0
The Free Channel Mask: 0x80000003
ISDN BRI0/1/1 interface
dsl 3, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 3 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
interface BRI0/1/0
no ip address
isdn switch-type basic-net3
isdn not-end-to-end 64
isdn point-to-point-setup
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
isdn static-tei 0
end
04-26-2015 02:37 AM
These are symptom of misconfiguration, possibly this is first cisco UC you have installed.
You can take "debug isdn q931" with "term mon" to see what happens.
03-27-2018 12:01 AM - edited 03-29-2018 12:48 AM
Similar issue of other user has been moved to new thread (see URL above).
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