[asterisk-ss7] ss7 with ewsd

[Lakshmi Narasimhan .R]

Wanpipe with crc4 enabled is known to cause problem with chan_ss7
signalling no matter what you are trying, so first change the below
setting

FE_FRAME        = CRC4

to

FE_FRAME        = NCRC4

this will help in finding the actual problem, you might get hints of
the problem in logs.

2009/7/6 chamo <chamo4 at darksun.sk>:
> hi
>
> i have problems with chan_ss7 to work with EWSD .
> i have tried many configuration with and without crc4, with different
> clock sources
> without success, i always get NOT_ALIGNED message
>
> i have also tried ss7 dump, but there wasn't any output
>
> many thanks for any help, and sorry for my english ;)
>
> ############status
> dmesg
>
> ADDRCONF(NETDEV_CHANGE): w1g1: link becomes ready
> wanpipe1: Global TDM Ring Resync
> wanpipe1: Card TDM Rsync Rx=0 Tx=2
> wanpipe1: RAI alarm is OFF
> wanpipe1: OOF alarm is OFF
> mtrr: type mismatch for f9000000,800000 old: write-back new: write-combining
>
>
> voicegw*CLI> ss7 link status
> linkset siuc, link l1, schannel 1, sls 0, NOT_ALIGNED, rx: 0, tx: 4/4,
> sentseq/lastack: 127/127, total   4754816,   4754912v
>
> i am also getting this message
>
> WARNING[4390]: mtp.c:513 t2_timeout: MTP2 timer T2 timeout (failed to
> receive 'O', 'N', or 'E' after sending 'O'), initial alignment failed on
> link 'l1'.
>
>
>
> here are my configs
>
> #dahdi system.conf
> #autogenerated by /usr/sbin/wancfg_dahdi do not hand edit
> #autogenrated on 2009-06-03
> #Dahdi Channels Configurations
> #For detailed Dahdi options, view /etc/dahdi/system.conf.bak
> loadzone=us
> defaultzone=us
>
> #Sangoma A108 port 1 [slot:4 bus:3 span:1] <wanpipe1>
> span=1,1,0,ccs,hdb3,crc4
> #span=1,0,0,ccs,hdb3
> bchan=1-31
>
> wanpipe1.conf
> #================================================
> # WANPIPE1 Configuration File
> #================================================
> #
> # Date: Wed Dec  6 20:29:03 UTC 2006
> #
> # Note: This file was generated automatically
> #       by /usr/local/sbin/setup-sangoma program.
> #
> #       If you want to edit this file, it is
> #       recommended that you use wancfg program
> #       to do so.
> #================================================
> # Sangoma Technologies Inc.
> #================================================
>
> [devices]
> wanpipe1 = WAN_AFT_TE1, Comment
>
> [interfaces]
> w1g1 = wanpipe1, , TDM_VOICE, Comment
>
> [wanpipe1]
> CARD_TYPE       = AFT
> S514CPU         = A
> CommPort        = PRI
> AUTO_PCISLOT    = NO
> PCISLOT         = 4
> PCIBUS          = 3
> FE_MEDIA        = E1
> FE_LCODE        = HDB3
> FE_FRAME        = CRC4
> FE_LINE         = 1
> TE_CLOCK        = NORMAL
> TE_REF_CLOCK    = 0
> TE_SIG_MODE     = CCS
> TE_HIGHIMPEDANCE        = NO
> LBO             = 120OH
> FE_TXTRISTATE   = NO
> MTU             = 1500
> UDPPORT         = 9000
> TTL             = 255
> IGNORE_FRONT_END = NO
> TDMV_SPAN       = 1
> TDMV_DCHAN      = 16
> TDMV_HW_DTMF    = YES
> TDMV_HW_FAX_DETECT = NO
>
> [w1g1]
> ACTIVE_CH       = ALL
> TDMV_HWEC       = YES
>
>
>
> ss7.conf
>
> [linkset-siuc]
>
> ; The linkset is enabled
> enabled => yes
>
> ; The end-of-pulsing (ST) is not used to determine when incoming address
> is complete
> enable_st => no
>
> ; Reply incoming call with CON rather than ACM and ANM
> use_connect => yes
>
> ; The CIC hunting policy (even_mru, odd_lru, seq_lth, seq_htl) is even
> CIC numbers, most recently used
> hunting_policy => even_mru
>
> ; Incoming calls are placed in the ss7 context in the asterisk dialplan
> context => ss7
>
> ; The language for this context is da
> language => da
>
> ; The value and action for t35. Value is in msec, action is either st or
> timeout
> ; If you use overlapped dialling dial plan, you might choose: t35 => 4000,st
> t35 => 15000,timeout
>
> ; The subservice field: national (8), international (0), auto or
> decimal/hex value
> ; The auto means that the subservice is obtained from first received SLTM
> subservice => auto
>
> ; The host running the mtp3 service
> ; mtp3server => localhost
>
> [link-l1]
>
> ; This link belongs to linkset siuc
> linkset => siuc
>
> ; The speech/audio circuit channels on this link
> channels => 2-31
>
> ; The signalling channel
> schannel => 1   ;yes i have signalling on channel 1, with libss7 was
> working (configs for libss7 are included lower))
> ; To use the remote mtp3 service, use 'schannel => remote,16'
> ; The first CIC
> firstcic => 1 ;;i have also tried start with firstcic =>2
>
> ; The link is enabled
> enabled => yes
>
> ; Echo cancellation
> ; echocancel can be one of: no, 31speech (enable only when transmission
> medium is 3.1Khz speech), allways
> echocancel => no
> ; echocan_train specifies training period, between 10 to 100 msec
> echocan_train => 350
> ; echocan_taps specifies number of taps, 32, 64, 128 or 256
> echocan_taps => 128
>
>
> [host-voicegw]
> ; chan_ss7 auto-configures by matching the machines host name with the
> host-<name>
> ; section in the configuration file, in this case 'gentoo1'. The same
> ; configuration file can thus be used on several hosts.
>
> ; The host is enabled
> enabled => yes
>
> ; The point code for this SS7 signalling point is 0x8e0
> ;opc => 0x8e0
> ; 15389 dec
> opc => 0x3c1d
>
> ; The destination point (peer) code is 0x3fff for linkset siuc
> ;dpc => siuc:0x3fff
> ; 15880
> dpc => siuc:0x3e08
>
> ; Syntax: links => link-name:digium-connector-no
> ; The links on the host is 'l1', connected to span/connector #1
> links => l1:1
>
> ; The SCCP global title: translation-type, nature-of-address,
> numbering-plan, address
> globaltitle => 0x00, 0x04, 0x01, 4546931411
> ssn => 7
>
> ##
> [root at voicegw ~]# uname -a
> Linux voicegw 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38 EST 2008 x86_64
> x86_64 x86_64 GNU/Linux
>
>
> ###################################
> this is working configuration for linss7, it was good, but there were
> some problems with ss7 stack
> ##chan_dahdi.conf
>
> trunkgroup => 1,1
> spanmap => 1,1
> language=en
> context=ss7
> switchtype=euroisdn
> pridialplan=unknown
> prilocaldialplan=national
> usecallerid=yes
> callwaiting=yes
> usecallingpres=yes
> callwaitingcallerid=yes
> threewaycalling=yes
> transfer=yes
> canpark=yes
> cancallforward=yes
> callreturn=yes
> echocancel=yes
> echocancelwhenbridged=yes
> group=1
> callgroup=1
> pickupgroup=1
> ss7_called_nai=dynamic
> ss7_calling_nai=dynamic
> ss7_internationalprefix = 00
> ss7_nationalprefix = 0
> ss7_subscriberprefix =
> ss7_unknownprefix =
> networkindicator=national_spare
> signalling = ss7
> ss7type = itu
> linkset = 1
> pointcode = 15389
> adjpointcode = 15880
> defaultdpc = 15880
> cicbeginswith = 2
> channel=2-31
> sigchan = 1
>
>
> ##system.conf
>
> span=1,1,0,ccs,hdb3,crc4
> bchan=2-31
> #echocanceller=mg2,2-31
> mtp2=1
>
>
>
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