Looking at l4isup.c and the dump, I'm just wondering, is it correct behaviour to have an empty optionals section? e.g. code like the following in isup_send_rlc(): isup_msg_start_optional_part(msg, sizeof(msg), &varptr, ¤t); isup_msg_end_optional_part(msg, sizeof(msg), ¤t); Should this not just be stripped out? Similar code exists in isup_send_rel(), except that optionals are added in the event of certain if() conditions being matched. Again, the question I have is should the isup_msg_start_optional_part and isup_msg_end_optional_part functions even be called if the conditions are such that no optionals need to be added? --Greg On 2011/11/21 01:36 PM, Gregory Massel wrote: > I have the exact same condition with chan_ss7 on Asterisk 1.4 and > Asterisk 1.8 and can confirm that I've run all versions of chan_ss7 > from 1.3 up to 2.1.0 (2.1.0 on Asterisk 1.8 and the previous versions > on Asterisk 1.4). > > The remote end is, to the best of my knowledge, a Siemens EWSD. > > The following feedback was provided by the remote carrier and may > prove useful in explaining the problem: > > SWTNRB 26 1-26 TRUNK BW 0-24 2-26 IDLE > > SWTNRB 27 1-27 TRUNK BW 0-24 2-27 INC & > > FRCD & > > IALM > > SWTNRB 28 1-28 TRUNK BW 0-24 2-28 IDLE > > SWTNRB 29 1-29 TRUNK BW 0-24 2-29 INC & > > FRCD & > > IALM > > SWTNRB 30 1-30 TRUNK BW 0-24 2-30 IDLE > > With the IALM condition is caused by "end of optional parameter in the > wrong place". > > If you should see in the attachment I have highlighted the REL and RLC > message from your nodes. > > Both of these have the optional parameter "indicated". > > If it is possible can you please set optional parameters OFF ( > parameter indicator =0) for > > These two messages. > > If you can let me know so that we can reset the circuits as we have > done previously. > > > They also provided the following: > > -------------------------------------------------------------------------------- > > Octet001 ITU-T SS7 Count=000001 Time=08/22/2011 13:21:14:023 > > -------------------------------------------------------------------------------- > > 10010010 BIB/BSN (146) 1/18 > > 11111001 FIB/FSN (249) 1/121 > > ..001110 SU type/length (14) MSU14 > > 00...... Spare 0 > > -------------------------------------------------------------------------------- > > Octet004 Service information octet > > -------------------------------------------------------------------------------- > > ....0101 Service indicator (5) ISUP ISDN User Part > > ..00.... Message priority 0 > > 11...... Network indicator (3) NAT1 National network > > -------------------------------------------------------------------------------- > > Octet005 Routing label > > -------------------------------------------------------------------------------- > > ........ DPC 01-1-03-0 JNL#1 > > ........ OPC 00-6-01-0 SWITCHTEL > > 1001.... SLS 9 > > -------------------------------------------------------------------------------- > > Octet009 Circuit identification code > > -------------------------------------------------------------------------------- > > ........ CIC 217 > > 0000.... Spare 0 > > -------------------------------------------------------------------------------- > > Octet011 ISUP Release message > > -------------------------------------------------------------------------------- > > 00001100 Message type (12) REL Release > > 00000010 Pointer->cause 2 > > 00000100 Pointer->optionals 4 > > -------------------------------------------------------------------------------- > > Octet014 Cause indicators parameter > > -------------------------------------------------------------------------------- > > 00000010 Parameter length 2 > > ....0101 Location (5) Private network serving the remote user (RPN) > > ...0.... Spare 0 > > .00..... Coding standard (0) CCITT standard > > 1....... Extension bit (1) Last octet > > .0010000 Cause (16) Normal call clearing > > 1....... Extension bit (1) Last octet > > -------------------------------------------------------------------------------- > > Octet017 ISUP End of optional parameters > > -------------------------------------------------------------------------------- > > 00000000 Parameter name code (0) ISUP End of optional parameters > > -------------------------------------------------------------------------------- > > Checksum CRC16................ 0001110100001111 hex=1D0F > > -------------------------------------------------------------------------------- > > > > As far as I am aware, there is no way to disable the optionals in > chan_ss7. > > Interestingly, the is not on all REL and RLC messages, only some of them. > > I guess it's time to look through the source code, but this hasn't > proven terribly problematic for me thus far because it's only a few > random CICs that block in that state. It seems the remote end does > eventually remove the admin block by itself after a certain amount of > time, but restarting asterisk or chan_ss7 won't help. Usually I just > get the guys on the remote end to manually clear the condition. > > On 2011/11/21 10:35 AM, Stefan Schmidt wrote: >> Hello list, >> >> i have two E1 running on a asterisk 1.8 with chan_ss7 which i have set >> to production state last week. And after around 5000 calls i can see >> that 3 channels are in state BLOCKED Remote Maintenance. My carrier said >> he hasnt blocked anything on this two E1 lines but he can see some >> messages even on busy lines he doesnt understand. >> >> Asterisk was automatically restarted every night but these three >> channels stay at this state. >> >> Is this a known bug or what can i do to solve this problem? >> >> asterisk verison 1.8 (Asterisk SVN-schmidts-unleash-the-beast-r343849) >> chan_ss7 version (chan_ss7 version 2.1.0) but with some patches to isup >> for connected line information and also the patch for the additional >> calling party header. >> >> thanks! >> >> best regards >> >> stefan schmidt >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided byhttp://www.api-digital.com -- >> >> asterisk-ss7 mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-ss7 > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7 -------------- next part -------------- An HTML attachment was scrubbed... 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