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ID Category Severity Reproducibility Date Submitted Last Update
0000284 [Yate - Yet Another Telephony Engine] module major always 2011-12-23 13:37 2012-01-04 17:44
Reporter ojab View Status public  
Assigned To
Priority normal Resolution open  
Status acknowledged   Product Version SVN
Summary 0000284: Yate counts SS7 CGB/CGBU with range=0 as valid
Description according to Q.763 (pt. 3.43a):
For the group blocking, unblocking and reset messages, range code 0 is reserved. Range code 0 is exclusively used by the circuit query and circuit query response messages.

But Yate can send CGB/CGBU with range=0 (and count it as valid), and it actually sends CGB with range=0 and hwfail=1 in case of some MGCP issues.
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marian (developer)
2012-01-04 17:44

For incoming CGB/CGU:
Accepting range 0 can be inhibited by setting ignore-cgb-single and ignore-cgu-single to 'yes' in trunk's section in ysigchan.conf.

For sending CGB/CGU with range 0:
We didn't found out how to block a single circuit due to hardware failure.
UBL/BLK are used for maintenance oriented circuit (un)block.

- Issue History
Date Modified Username Field Change
2011-12-23 13:37 ojab New Issue
2011-12-28 10:41 paulc Status new => acknowledged
2012-01-04 17:44 marian Note Added: 0000398

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