[Home]

Summary:ASTERISK-13006: [patch] !! Unknown IE 50 (cs5, Unknown Information Element) & RTCP SR transmission error, rtcp halted
Reporter:Florian Decher (fdecher)Labels:
Date Opened:2008-11-03 07:47:17.000-0600Date Closed:2009-11-03 11:24:46.000-0600
Priority:MajorRegression?No
Status:Closed/CompleteComponents:Channels/chan_dahdi/NewFeature
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) 20090515__issue13828__libpri__1.4.diff.txt
( 1) 20090515__issue13828__trunk.diff.txt
( 2) 20091004__issue13828__asterisk_trunk.diff.txt
( 3) 20091004__issue13828__libpri_1.4.diff.txt
( 4) libpri_ie50_cs5-trunk.diff3.txt
Description:Hi,

we have a customer running asterisk 1.4.21.2, zaptel 1.4.11, libpri 1.4.7. They are using a Digium TE 121 card.

There are about 100 users working on this system. And the system is quite busy there are about 20 calls concurrent (min).

Everything seems to run fine but when I connect via asterisk -r

I get tons of this message (one every few seconds):

RTCP SR transmission error, rtcp halted
RTCP SR transmission error, rtcp halted
RTCP SR transmission error, rtcp halted

and I get tons of this message (one every few minutes):

! Unknown IE 50 (cs5, Unknown Information Element)

the cusomer is a bit conserned about these two error messages.

what are these two messages about and what should i do to get rid of them?

please help me.
best regards florian
Comments:By: Leif Madsen (lmadsen) 2008-11-24 14:01:17.000-0600

Can you please show the exact, full line of these log messages?

Are they actually prefixed with ERROR, or is it just prefixed with WARNING or NOTICE?
By: Florian Decher (fdecher) 2008-11-28 05:11:24.000-0600

Hi, these are the full lines.
By: Jeff Peeler (jpeeler) 2008-12-15 15:43:49.000-0600

I think you'll find the "RTCP SR transmission error, rtcp halted" error messages go away after upgrading to at least 1.4.23 (not yet released) or anything later than 161013. Please report back if this is the case.
By: Leif Madsen (lmadsen) 2009-01-27 21:03:54.000-0600

I'm going to close this out as jpeeler is pretty sure this was fixed in 1.4.23 which is now released. If this is not the case, please request this issue to be re-opened.

Thanks!
By: Jeff Peeler (jpeeler) 2009-01-28 09:51:52.000-0600

IE 50 seems to be an information request which I would think should be supported. Only the RTCP transmission error message would have been fixed by my change.
By: Tilghman Lesher (tilghman) 2009-03-17 16:22:06

This patch should be sufficient to suppress the error.  I'd be interested in seeing which type of information request was received, though.
By: Tilghman Lesher (tilghman) 2009-04-28 16:29:47

fdecher:  Your testing and feedback would be appreciated on this issue.


By: Tilghman Lesher (tilghman) 2009-05-12 15:46:45

fdecher: ping
By: Tilghman Lesher (tilghman) 2009-05-15 15:54:11

Okay, patches further implement the ability to specify the trunk accountcode in the Dial line, to be provided when the trunk requests it, in the following form:

DAHDI/g1/12345678901/4444

where 4444 is the account code.
By: Joshua C. Colp (jcolp) 2009-05-21 09:46:13

I've changed this issue to be a new feature now since it has turned into that.
By: Leif Madsen (lmadsen) 2009-08-04 13:15:01

Changing severity to 'feature' and removing myself as the assignee since I have no hardware available to test this feature.
By: Alec Davis (alecdavis) 2009-10-28 19:44:21

On our asterisk boxes connected to a Jtec QSIG card we get
!! Unknown IE 50 (cs5, Unknown Information Element)

Debugging with Jtec tools reveals it's Calling Party Category
<pre>
0053 E1M-B    091029 12:29:09.81 Q.931 SETUP                   C/Ref 7CCE  Org
Octet 1  00000100  INFORMATION ELEMENT : Bearer Capability
Octet 2  00000011  IE Length           : 3
Octet 3  1-------  Extension Bit       : Not Continued
         -00-----  Coding Standard     : ITU-T Standard
         ---00000  Info Trans Capab    : Speech
Octet 4  1-------  Extension Bit       : Not Continued
         -00-----  Transfer Mode       : Circuit mode
         ---10000  Info Trans Rate     : 64 kbit/s
Octet 5  1-------  Extension Bit       : Not Continued
         -01-----  Layer               : User Info Layer 1
         ---00011  Layer 1 Protocol    : A-law (Rec G.711)
Octet 1  00011000  INFORMATION ELEMENT : Channel Identification
Octet 2  00000011  IE Length           : 3
Octet 3  1-------  Extension Bit       : Not Continued
         -0------  Interface ID        : Interface implicitly identified
         --1-----  Interface Type      : Primary Rate [or other (not Basic)]
         ---0----  Spare               :
         ----1---  Preferred/Exclusive : Exclusive; only indicated channel
         -----0--  D Channel Indicator : Indicated channel is not the D-ch
         ------01  Info Channel Sel'n  : As indicated in following octets
Oct 3.2  1-------  Extension Bit       : Not Continued
         -00-----  Coding Standard     : ITU-T Standard
         ---0----  Number/Map          : Channel is number in next octet(s)
         ----0011  Channel/Map Ele Type: B-channel units
Oct 3.3  1-------  Extension Bit       : Not Continued
         00000001  Channel Number      : 1
Octet 1  00011110  INFORMATION ELEMENT : Progress Indicator
Octet 2  00000010  IE Length           : 2
Octet 3  1-------  Extension Bit       : Not Continued
         -00-----  Coding Standard     : ITU-T Standard
         ---0----  Spare               :
         ----0001  Location            : Private network serving local user
Octet 4  1-------  Extension Bit       : Not Continued
         -0000011  Progress Description: Origination address is non-ISDN
Octet 1  00011110  INFORMATION ELEMENT : Progress Indicator
Octet 2  00000010  IE Length           : 2
Octet 3  1-------  Extension Bit       : Not Continued
         -01-----  Coding Standard     : ISO/IEC Standard
         ---0----  Spare               :
         ----0001  Location            : Private network serving local user
Octet 4  1-------  Extension Bit       : Not Continued
         -0010000  Progress Description: Interworking with a public network
Octet 1  01101100  INFORMATION ELEMENT : Calling Party Number
Octet 2  00001001  IE Length           : 9
Octet 3  0-------  Extension Bit       : Continued
         -000----  Type of Number      : Unknown
         ----0000  Numbering Plan      : Unknown
Octet 3a 1-------  Extension Bit       : Not Continued
         -00-----  Presentation Ind'r  : Presention allowed
         ---000--  Spare               :
         ------00  Screening Indicator : User-provided, not screened
Octet 4+ --------  Number Digits       : 5604813
Octet 1  01110000  INFORMATION ELEMENT : Called Party Number
Octet 2  00001010  IE Length           : 10
Octet 3  1-------  Extension Bit       : Not Continued
         -000----  Type of Number      : Unknown
         ----0000  Numbering Plan      : Unknown
Octet 4+ --------  Number Digits       : 095551234
<b><u> Octet 1  10011101  INFORMATION ELEMENT : Non-locking Shift to Codeset 5
Octet 1  00110010  INFORMATION ELEMENT : Party Category
Octet 2  00000001  IE Length           : 1
Octet 3  1-------  Extension Bit       : Not Continued
         -0000---  Spare               :
         -----000  Party Category      : Unknown
</u></b>

where I believe the Category is from ITU Q.763 or ECMA-250 which is one of the following
     #define UNKNOWN_SOURCE         0x00
     #define OPERATOR_FRENCH        0x01
     #define OPERATOR_ENGLISH       0x02
     #define OPERATOR_GERMAN        0x03
     #define OPERATOR_RUSSIAN       0x04
     #define OPERATOR_SPANISH       0x05
     #define MUT_AGREE_CHINESE      0x06
     #define MUT_AGREEMENT          0x07
     #define MUT_AGREE_JAPANESE     0x08
     #define NATIONAL_OPERATOR      0x09
     #define ORDINARY_TOLL_CALLER   0x0a
     #define PRIORITY_TOLL_CALLER   0x0b
     #define DATA_CALL              0x0c
     #define TEST_CALL              0x0d
     #define PAY_PHONE              0x0f    /* not China              */
     #define ORDINARY_NO_CHG        0x10    /* China only             */
     #define ORDINARY_PERIODIC      0x11    /* China only             */
     #define ORDINARY_METER_IMMED   0x12    /* China only             */
     #define ORDINARY_PRINTER_IMMED 0x13    /* China only             */
     #define PRIORITY_NO_CHG        0x14    /* China only             */
     #define PRIORITY_PERIODIC      0x15    /* China only             */
     #define ORDINARY_LOCAL         0x18    /* China only             */
</pre>


By: Alec Davis (alecdavis) 2009-10-28 20:26:38

Patches so far are for IE50 - Codeset 0 - INFO REQUEST.

fdecher and ours are IE50 - Codeset 5, so the Info Request patches won't help us :(

Needless to say, the info request patches may be useful elsewhere.
By: Alec Davis (alecdavis) 2009-10-28 21:39:26

uploaded libpri_ie50_cs5-trunk.diff2.txt:

And it works!

< Message Type: SETUP (5)
< [04 03 80 90 a3]
< Bearer Capability (len= 5) [ Ext: 1  Q.931 Std: 0  Info transfer capability: Speech (0)
<                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
<                                User information layer 1: A-Law (35)
< [18 03 a9 83 9f]
< Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0  Exclusive  Dchan: 0
<                        ChanSel: As indicated in following octets
<                       Ext: 1  Coding: 0  Number Specified  Channel Type: 3
<                       Ext: 1  Channel: 31 Type: CPE]
< [1e 02 81 81]
< Progress Indicator (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  0: 0  Location: Private network serving the local user (1)
<                               Ext: 1  Progress Description: Call is not end-to-end ISDN; further call progress information may be available inband. (1) ]
< [1e 02 a1 90]
< Progress Indicator (len= 4) [ Ext: 1  Coding: Non-ITU international standard (1)  0: 0  Location: Private network serving the local user (1)
<                               Ext: 1  Progress Description: Interworking with a public network. (16) ]
< [6c 09 00 80 35 36 30 34 38 36 36]
< Calling Number (len=11) [ Ext: 0  TON: Unknown Number Type (0)  NPI: Unknown Number Plan (0)
<                           Presentation: Presentation permitted, user number not screened (0)  '5604866' ]
< [70 05 80 38 36 39 39]
< Called Number (len= 7) [ Ext: 1  TON: Unknown Number Type (0)  NPI: Unknown Number Plan (0)  '8699' ]
< [9d]
< Non-Locking Shift (len=01): Requested codeset 5
<b><u>< [32 01 80]
< Calling Party Category (len= 3) [ Ext: 1  Cat: Unknown Source (0) ]
</u></b>-- Making new call for cr 99
Received message for call 0x9e07f60 on 0x9dfe2b0 TEI/SAPI 0/0, call->pri is 0x9dfe2b0 TEI/SAPI 0/0
-- Processing Q.931 Call Setup
-- Processing IE 4 (cs0, Bearer Capability)
-- Processing IE 24 (cs0, Channel Identification)
-- Processing IE 30 (cs0, Progress Indicator)
-- Processing IE 30 (cs0, Progress Indicator)
-- Processing IE 108 (cs0, Calling Party Number)
-- Processing IE 112 (cs0, Called Party Number)
<b><u>-- Processing IE 50 (cs5, Calling Party Category)</u></b>
q931.c:6302 post_handle_q931_message: Call 99 enters state 6 (Call Present).  Hold state: Idle
Sending Receiver Ready (5)


By: Richard Mudgett (rmudgett) 2009-11-02 15:15:55.000-0600

alecdavis:
libpri_ie50_cs5-trunk.diff2.txt:
Since code set 5 is national specific, the standards documents really need to be referenced for verification and understanding.

The cpc2str() takes an integer and will supply a string from it's table when a value 0-15 is supplied.  It is only called where it is given a value of 0-7.  Incorrect decode is very likely because of the mismatch in field sizes expected.
By: Alec Davis (alecdavis) 2009-11-02 17:11:23.000-0600

Please remove libpri_ie50_cs5-trunk.diff2.txt

uploaded libpri_ie50_cs5-trunk.diff3.txt:
fixed typo in dump_calling_party_category where I'd used only 3 bits instead of 4 to decode the party category.

As IE50 (Codeset 5) is based on National implementations it maybe safer to not try to decode it, and just display the value?
By: Leif Madsen (lmadsen) 2009-11-03 09:05:54.000-0600

Because there are a bunch of changes still going on, I'm going to drop this back to Ready for Testing for now.
By: Digium Subversion (svnbot) 2009-11-03 11:24:43.000-0600

Repository: libpri
Revision: 1261

U   branches/1.4/pri_q931.h
U   branches/1.4/q931.c

------------------------------------------------------------------------
r1261 | rmudgett | 2009-11-03 11:24:42 -0600 (Tue, 03 Nov 2009) | 11 lines

Unknown IE 50 (cs5, Unknown Information Element)

Add code to recognize the code set 5 ie 50 (calling party category) to
suppress the unknown IE message.

(closes issue ASTERISK-13006)
Reported by: fdecher
Patches:
     libpri_ie50_cs5-trunk.diff3.txt uploaded by alecdavis (license 585)
Tested by: alecdavis

------------------------------------------------------------------------

http://svn.digium.com/view/libpri?view=rev&revision=1261