[asterisk-users] Conneting Asterisk to Swyx pri

[Geraint Lee]

Hi all, I've done this a few times with other PBX's but swyx has stumped me!
I'm having some trouble getting Asterisk connected to a Swyx system using a
sangoma A104dx... currently the setup is:
BT <-> Swyx

The above setup works fine... what i'm trying to achieve is
BT & SIP Trunks <-> Asterisk <-> Swyx

I have connected to our BT (2 x ISDN30 UK) with asterisk and have no errors
and can make and receive calls and it never dies... the problem comes when i
try and connect asterisk to swyx...
I can make calls from asterisk to the swyx system with no problems or
errors, but... when i try and place a call from Swyx to asterisk i receive
the following error:
[Oct  6 10:56:20] ERROR[9794]: chan_zap.c:8250 zt_pri_error: !! Unexpected
Channel selection 3

The call does complete as normal but after about 2 or 3 hours of calls
passing through this setup i start receiving errors like the following:
[Oct  6 10:55:25] WARNING[9794]: chan_zap.c:8074 pri_fixup_principle: Can't
fix up channel from 63 to 92 because 92 is already in use
[Oct  6 10:55:25] WARNING[9794]: chan_zap.c:9245 pri_dchannel: Hangup on bad
channel 0/30 on span 3
[Oct  6 10:55:55] WARNING[9794]: chan_zap.c:8074 pri_fixup_principle: Can't
fix up channel from 63 to 92 because 92 is already in use

And eventually no more calls can be placed from swyx to asterisk... time for
some configs... and before anyone says something about wanpipe3 and 4 having
dchan=0, i tried with dchan=16 and no calls can be placed...

I hope someone can point me in the right direction as we're trying to get
rid of swyx since we're tied down by limiting software and excessive
licensing costs.

Thanks!

Geraint

pri show spans shows all spans as up and active.
zap show status shows all as ok
wanrouter status shows all as connected

wanpipe1 and 2:
[devices]
wanpipe1 = WAN_AFT_TE1, Comment

[interfaces]
w1g1 = wanpipe1, , TDM_VOICE, Comment

[wanpipe1]
CARD_TYPE       = AFT
S514CPU         = A
CommPort        = PRI
AUTO_PCISLOT    = NO
PCISLOT         = 1
PCIBUS          = 16
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    = NO

[w1g1]
ACTIVE_CH       = ALL
TDMV_ECHO_OFF   = NO
TDMV_HWEC       = YES


wanpipe3 and 4:
[devices]
wanpipe3 = WAN_AFT_TE1, Comment

[interfaces]
w3g1 = wanpipe3, , TDM_VOICE, Comment

[wanpipe3]
CARD_TYPE       = AFT
S514CPU         = A
CommPort        = PRI
AUTO_PCISLOT    = NO
PCISLOT         = 1
PCIBUS          = 16
FE_MEDIA        = E1
FE_LCODE        = HDB3
FE_FRAME        = CRC4
FE_LINE         = 3
TE_CLOCK        = MASTER
TE_REF_CLOCK    = 1
TE_SIG_MODE     = CCS
TE_HIGHIMPEDANCE        = NO
LBO             = 120OH
FE_TXTRISTATE   = NO
MTU             = 1500
UDPPORT         = 9000
TTL             = 255
IGNORE_FRONT_END = NO
TDMV_SPAN       = 3
TDMV_DCHAN      = 0
TDMV_HW_DTMF    = NO

[w3g1]
ACTIVE_CH       = ALL
TDMV_ECHO_OFF   = NO
TDMV_HWEC       = YES

zaptel.conf:
loadzone=uk
defaultzone=uk

#Sangoma A104 port 1 [slot:1 bus:16 span:1] <wanpipe1>
span=1,0,0,ccs,hdb3,crc4
bchan=1-15,17-31
hardhdlc=16

#Sangoma A104 port 2 [slot:1 bus:16 span:2] <wanpipe2>
span=2,0,0,ccs,hdb3,crc4
bchan=32-46,48-62
hardhdlc=47

#Sangoma A104 port 3 [slot:1 bus:16 span:3] <wanpipe3>
span=3,0,0,ccs,hdb3,crc4
bchan=63-77,79-93
dchan=78

#Sangoma A104 port 4 [slot:1 bus:16 span:4] <wanpipe4>
span=4,0,0,ccs,hdb3,crc4
bchan=94-108,110-124
dchan=109

I have also tried with hardhdlc=109 and have the same problem.

zapata.conf:
[channels]
language=en
usecallerid=yes
hidecallerid=no
callwaiting=no
callwaitingcallerid=yes
restrictcid=no
usecallingpres=no
threewaycalling=yes
callreturn=yes
transfer=yes
cancallforward=yes
musiconhold=default
rxgain=0.0
txgain=0.0
immediate=no

; BT
switchtype=euroisdn
group=1
context=from-bt
signalling=pri_cpe

; Port 1 - BT
channel => 1-15,17-31

; Port 2 - BT
channel => 32-46,48-62

; Swyx
overlapdial=yes
group=2
context=from-swyx
signalling=pri_net

; Port 3 - Swyx
channel => 63-77,79-93

; Port 4 - Swyx
channel => 94-108,110-124
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