[cisco-nas] ISDN calls not making it to NM-6DM

[Tom Storey]

Hi Mark, did not expect such a quick response!

Indeed it is originating from the 1841 as 8890.

I also re-configured the 1841 to do DoV, where the bearercap changed to
0x8090A3, and this was also seen as the incomming bearercap on the 3825.

I was under the impression from my reading that the NM-xDM could also
terminate ISDN data calls, or have I got that wrong?

Cheers!

On 30 January 2015 at 23:27, Mark Johnson (mljohnso) <mljohnso at cisco.com>
wrote:

>  A bearer cap of 0x8890 means the call is digital, not analog, so the
> call is not being passed to a modem.  Your emulating network in between
> must be mucking with the bearer cap (check out debug on the 1841 to verify
> that it’s not originating at 8890).
>
>  mark
>
>   From: Tom Storey <tom at snnap.net>
> Date: Friday, January 30, 2015 at 3:13 PM
> To: "cisco-nas at puck.nether.net" <cisco-nas at puck.nether.net>
> Subject: [cisco-nas] ISDN calls not making it to NM-6DM
>
>   Hi everyone.
>
>  Playing around with some old hardware in a lab, trying to get some ISDN
> calls originated from an 1841 with a WIC-1B-S/T-V3 to be answered on a 3825
> with a NM-6D and NM-CE1T1-PRI.
>
>  Heres my config:
>
>  controller E1 1/0
>  pri-group timeslots 1-6,16
> !
> interface Serial1/0:15
>  no ip address
>  encapsulation ppp
>  isdn switch-type primary-net5
>  isdn incoming-voice modem 64
>  isdn bchan-number-order ascending
> !
> interface Group-Async0
>  ip unnumbered Loopback0
>  ip nat inside
>  ip virtual-reassembly in
>  encapsulation ppp
>  peer default ip address pool dialup
>  async mode interactive
>  no keepalive
>  ppp authentication chap callin
>  group-range 2/0 2/5
> !
> line 2/0 2/5
>  modem InOut
>  autoselect ppp
> !
>
>  And heres what I see when an ISDN call comes in:
>
>  *Jan 30 23:31:24.963 UTC: ISDN Se1/0:15 Q931: RX <- SETUP pd = 8
>  callref = 0x0183
> Bearer Capability i = 0x8890
> Standard = CCITT
> Transfer Capability = Unrestricted Digital
> Transfer Mode = Circuit
> Transfer Rate = 64 kbit/s
> Channel ID i = 0xA98381
> Exclusive, Channel 1
> Calling Party Number i = 0x80, '0733944124'
> Plan:Unknown, Type:Unknown
> Called Party Number i = 0x80
> Plan:Unknown, Type:Unknown
> *Jan 30 23:31:24.963 UTC: ISDN Se1/0:15 Q931: Received SETUP  callref =
> 0x8183 callID = 0x01E5 switch = primary-net5 interface = User
> *Jan 30 23:31:24.971 UTC: %ISDN-6-CONNECT: Interface Serial1/0:0 is now
> connected to 0733944124 N/A
> *Jan 30 23:31:24.971 UTC: ISDN Se1/0:15 Q931: TX -> CALL_PROC pd = 8
>  callref = 0x8183
> Channel ID i = 0xA98381
> Exclusive, Channel 1
> *Jan 30 23:31:24.971 UTC: ISDN Se1/0:15 Q931: TX -> CONNECT pd = 8
>  callref = 0x8183
> Channel ID i = 0xA98381
> Exclusive, Channel 1
> *Jan 30 23:31:24.979 UTC: ISDN Se1/0:15 Q931: RX <- CONNECT_ACK pd = 8
>  callref = 0x0183
>
>  So as far as I can tell the call comes in and establishes fine, but even
> with "debug modem" and a couple of other debugs on, I dont see any activity
> regarding connection to a modem. When I dial in from an analogue modem it
> works just fine.
>
>  FWIW I am using the 3825 as a PSTN simulator as well. The 1841 is
> connected to a VIC2-2BRI-NT/TE emulating network, and a dialpeer connects
> calls to a VWIC2-2MTF-E1 which is also emulating network and is connected
> to the NM-CE1T1-PRI.
>
>  Wondering if any one can provide any pointers to help me out. Am I
> missing something obvious?
>
>  Let me know if you require more information.
>
>  Thanks
> Tom
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-nas/attachments/20150130/addd9901/attachment-0001.html>