Hi, I have posted a comment on this previously but am still having issue.
I have a SRST gateway which I remotely maintain from the UK in Malta, however the ISDN lines spend more time in a down state than up. When I remote to the gateway a show ISDN status shows the BRI layer 1 in a Deviated state.
The Telco have stated that the lines are working when they plug their tester in.
The MGCP config is as follows:-
Inhibit Restart at BRI initialization check on
Point to point set up is on
TEI Negotiation is on Power-up
TEI preservation - reserve
TEI mode is dynamic
TEI value is 0
Line power is off
Layer 1 protocol side is user.
I am unable to attain any info from the Telco for the correct settings. I would appreciate it if anyone can confirm/advise on what the correct ISDN settings should be.
What is the issue exactly ? Can the line place and receive calls ?
As mentionen previously it is normal that the line goes down when not use.
Then post any complete show command output, because "Deviated" is nto an ISDN status.
Finally, note that MGCP often have too many bugs, and a H.323 or SIP configuration would be more robust.