Date: Wed, 8 Nov 2006 15:40:12 +0100 From: Daniel Hartmeier <daniel@benzedrine.cx> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-isdn@freebsd.org Subject: Re: ISDN4BSD / ihfc0 in NT-mode setup Message-ID: <20061108144012.GB6819@insomnia.benzedrine.cx> In-Reply-To: <200611081512.33913.hselasky@c2i.net> References: <20061108135555.GK14033@insomnia.benzedrine.cx> <200611081512.33913.hselasky@c2i.net>
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On Wed, Nov 08, 2006 at 03:12:33PM +0100, Hans Petter Selasky wrote:
> You need to configure "isdnd" before you can use "isdnphone". Try running
> "capitest -u 0 -i 1 -o 1" instead.
# capitest -u 0 -i 1 -o 1
[...]
main.c: capi_send_listen_request: sending listen request for
incoming_calls
dialing out, 1 / 1 ...
main.c: cd_event: disconnected: normal call clearing
Concurrently
# isdntrace -u 0 -b -i
=========== isdntrace controller #0 =========== started Wed Nov 8 14:21:32 2006
-- NT->TE - unit:00 frame:000068 - time:08.11 14:21:42.089982 - length:3 -----
D01:000 02 01 7f ................
D01 ("isdndecode" can decode the data above)
-- NT->TE - unit:00 frame:000069 - time:08.11 14:21:42.089991 - length:8 -----
D01:000 02 01 00 00 08 01 7f 75 .......u........
-- NT->TE - unit:00 frame:000070 - time:08.11 14:21:42.089993 - length:8 -----
D01:000 02 01 02 01 08 01 7f 75 .......u........
-- NT->TE - unit:00 frame:000071 - time:08.11 14:21:43.133560 - length:8 -----
D01:000 02 01 00 00 08 01 7f 75 .......u........
-- NT->TE - unit:00 frame:000072 - time:08.11 14:21:43.133564 - length:8 -----
D01:000 02 01 02 01 08 01 7f 75 .......u........
[...]
Decoding one of those with
# isdndecode -u 0 -b -i
-- TE->NT - unit:00 --------------- time:08.11 14:28:08.037067 ----------------
L1 STATE: G3: Active
-- NT->TE - unit:00 frame:000087 - time:08.11 14:28:09.072752 - length:8 -----
L2 00 02 000000-- SAPI = 0 (Call Control)
------1- C/R = Command
-------0 Extension Bit = 0 (with extension, octet follows)
L2 01 01 0000000- TEI = 0 = 0x00 (Non-automatic TEI)
-------1 Extension Bit = 1 (no extension, final octet)
L2 02 00 0000000- N(S) = 0 (send sequence number)
-------0 I-Frame: Information transfer
L2 03 00 0000000- N(R) = 0 (receive sequence number)
-------0 P/F, Poll = No Immediate Response Required
L3 04 08 00001000 Protocol = Q.931/I.451/DSS1 (0x08)
L3 05 01 0000---- Call Reference
----0001 Call Reference length is 1 byte
L3 06 7F 0------- Call Reference is sent from call originator
-1111111 Call Reference = 127 = 0x7f
L3 07 75 0------- Message type extension = 0
-1110101 Message type = STATUS_ENQUIRY (0x75)
> > When I use the ISDN phone to dial any number, nothing happens, either, and
> > the phone shows "No connection", no trace output.
>
> Do you have "isdnd" or "Asterisk+chan_capi" running ?
No, I wasn't.
> A quicky is to just: "cat /dev/i4b > /dev/null &"
>
> Do any messages appear now?
Aha! Now when I pick up the ISDN phone I see
# isdntrace -u 0 -b -i
=========== isdntrace controller #0 =========== started Wed Nov 8 14:31:40 2006
-- TE->NT - unit:00 frame:000093 - time:08.11 14:31:44.044581 - length:8 -----
D01:000 fc ff 03 0f 42 d9 01 ff ....B...........
D01 ("isdndecode" can decode the data above)
-- TE->NT - unit:00 frame:000094 - time:08.11 14:31:46.044784 - length:8 -----
D01:000 fc ff 03 0f 75 ac 01 ff ....u...........
-- TE->NT - unit:00 frame:000095 - time:08.11 14:31:48.044987 - length:8 -----
D01:000 fc ff 03 0f ec 70 01 ff .....p..........
And decoding that
# isdndecode -u 0 -b -i
=========== isdndecode controller #0 ========== started Wed Nov 8 14:33:28 2006
-- TE->NT - unit:00 frame:000100 - time:08.11 14:33:31.805523 - length:8 -----
L2 00 FC 111111-- SAPI = 63 (Layer 2 Management)
------0- C/R = Command
-------0 Extension Bit = 0 (with extension, octet follows)
L2 01 FF 1111111- TEI = 127 = 0x7f (Broadcast TEI)
-------1 Extension Bit = 1 (no extension, final octet)
L2 02 03 000-0011 U-Frame: UI (Unnumbered Information)
---0---- P/F, Poll = No Immediate Response Required
L2 03 0F 00001111 MEI (Management Entity Identifier)
L2 04 9F 10011111 Ri = 0x9fe6 (Reference number high)
L2 05 E6 11100110 Ri (Reference Number low)
L2 06 01 00000001 TEI Identity message = REQUEST (0x01)
L2 07 FF 1111111- Ai = 127 (Action Indicator = )
-------1 Extension Bit = 1 (no extension, final octet)
There is still no tone one the phone and it still produces the
"No connection" message, but I hope the output above might tell
what is wrong.
> If the messages you get use TEI 0 then it is P2P_NT you need to setup.
They do, right?
> "isdntest" can do some basic testing, but "capitest" is better. "isdntest" is
> not installed by default.
Does the output above look ok? Does it mean the cabling is fine?
Next thing I need to do is set up isdnd, and then I can use capitest
to dial from the FreeBSD box to the phone (or does capitest itself
not require isdnd)?
Thank you for your help, much appreciated.
Daniel
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