06-23-2007 03:38 AM - edited 03-14-2019 10:14 PM
Hi all, i have AS5350 connect to PSTN by E1 line. E1 line connect to port 3/3 on AS5350. I config it to work as voice gateway. I can call from PSTN to voicegateway. But when i call from voicegateway to PSTN i get some problem,
I used command "debug isdn cc" and error is write in attached file.
I sure that the number i called is still available.
See my attached file:
- config file
- error file
Any one can help me to solve this problem
Thanks alot.
Will vote 5* for you
06-23-2007 03:47 AM
Hello,
can you include "debug isdn q931" for the failed call please.
06-23-2007 09:03 AM
Hi, this is output after debug isdn q931 is on
and i call to number 1546
----
GW#csim start 91546
csim: called number = 91546, loop count = 1 ping count = 0
csim err csimDisconnected recvd DISC cid(63)
csim err csimTimeOut t.o while disconnecting cid(63)
csim: loop = 1, failed = 1
csim: call attempted = 1, setup failed = 1, tone failed = 0
----
E1 Line connect is ok because i can call from PSTN to gateway.
Hope you can help
Thanks first
06-23-2007 09:08 AM
Hello, I'm afraid that you didn't turned on "term mon" before "debug isdn q931", because no information is visible.
06-24-2007 05:33 AM
06-24-2007 05:57 AM
Hello,
1st, you are calling 5146, that seems too short to be a valid PSTN number.
However, by the error reported, it seems that you are not allowed to place calls, pls check with telco if you are.
06-24-2007 08:54 AM
I sure that this number is correct.
I can call from PSTN to IP phone via this ISDN line.
But i "show ip int brief" and only channel D is up, other channel is down, is it normal? ( show in error2.txt)
When i call from PSTN to IP Phone, 1 channel B is up (show in error3.txt)
Any thing wrong?
06-24-2007 09:47 AM
Hi,
The output of "show ip in brief" is normal. Line protocol will never go up for B channel, because it is not a data call.
Now when calling out, you receive "requested channel not available" error, this can be an indication the PRI has been configured by telco only for incoming and not outgoing.
You can try configuring "isdn negotiate-bchan, see documentation, but I never seen the need for this in my experience.
Also, are you sure that all channels are bidirectional in you telco contract ? csim commands may use lower channels while if you do the call via ip/phone dial-peer, it should select an higher channel for outgoing.
06-25-2007 06:49 PM
Any one have other idea?
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide