ROUTER 3825 BRI ISDN SUBCOMMAND DOCUMENTATION

Do you remember the forum topic titled "Voice over IP: problem connecting isdn bri voice interface to pstn"?????
I've entered the "isdn transition-delay 1" interface command and things seem to work well. According to the IOS help on my router,this command clears the ISDN D-CHANNEL after a delay of 1 second.
But i would like to get more information on this command, and also on the isdn layer 2 and 3 timers, and even possible on all the "isdn" interface command option.
THANKS

The command "isdn transition-delay " is a hidden command and it is used to give delay before bringing the D channel up.

Similar Messages

Router with BRI interface

i need your support to know model Router with BRI interface

The Cisco 876 (cheapest option) provides ADSL over ISDN
http://www.cisco.com/en/US/products/hw/routers/ps380/products_data_sheet0900aecd8028a976.html
For integrated ISDN BRI, I suggest looking at the 1800 Series
http://www.cisco.com/en/US/products/ps6184/index.html

Want to get only 1 BRI ISDN Port,but..

Hi Gurus,
I have a problem here. Currently my router having an empty network module slot. But my company doesn't have budget to get a Network Modules with 4 BRIs Port or diff mixtures of interfaces.
So, is that any network modules that support only 1 BRI ISDN Interface?
thks,
rgds,
ken

Hi ken,
Check this link for 1 BRI ISDN interface details
http://www.cisco.com/en/US/products/hw/modules/ps3129/products_tech_note09186a00800ab515.shtml
Hope u got what your looking for
Thanks
Raj

Monitoring traffic on router (3825)

I have complaints for a downstream customer trying to connect to my network. He is the only one connecting to hosts via ssh. He is not showing up hitting the 3rd party (Mcaffee Sidewinder Firewall) between the 2 Cisco 3825 routers. I want to put wire shark on the first router to see what the issue might be. Can I span the GE0/0 port to one of the Fast Ethernet ports on this router to hook up a laptop with Wireshark to monitor the traffic of this device?

You can capture packets directly on the router-
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/epc/command/epc-cr-book.html

Transcoder Configuration Router 3825

Hello
I'm trying to setup a transcoder with Call Manager 6.1, but i have an issue when i try to setup the dspfarm-profile, in the maximun session the router doesn't have resources left. but the router has 64dsp install:
PVDM Slot 0:
64-channel (G.711) Voice/Fax PVDMII DSP SIMM PVDM daughter card
Also i have:
ontroller T1 0/1/0
framing sf
linecode ami
ds0-group 0 timeslots 1-24 type e&m-wink-start
controller T1 0/1/1
framing sf
linecode ami
ds0-group 0 timeslots 1-24 type e&m-wink-start
The card are consuming only 48 dsp.
The version of the IOS: c3825-spservicesk9-mz.124-15.T3.bin
What could be the issue?
Thanks

I would start by verifying that you've determining how many dsp resources you have available then go from there. Remember every 16 MB of pvdm memory equals to one DSP. More than likely if you're short of DSP resources you'll need to add another PVDM or increase the memory (replace).
If you type "show voice dsp group all". Find amount of "num_of_sig_chnls_allocated" make sure that the value of the channels allocated on at least one of your DSP resources is set to 0 (meaning its free/available to use). I've pasted an output from my router. On DSP 7 and DSP8 of my router, you'll see that 0 channels are used. (BOLD TEXT)
3825#sh voice dsp group all
DSP groups on slot 0:
dsp 1:
State: UP, firmware: 9.4.12
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 16
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 16
    Voice channels allocated: 0
    Credits used: 0
dsp 2:
State: UP, firmware: 9.4.12
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 16
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 16
    Voice channels allocated: 0
    Credits used: 0
dsp 5:
State: UP, firmware: 9.4.12
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 4
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 4
    Voice channels allocated: 0
    Credits used: 0
dsp 7:
State: UP, firmware: 9.4.12
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 0
    Voice channels allocated: 0
    Credits used: 0
dsp 8:
State: UP, firmware: 9.4.12
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 0
    Voice channels allocated: 0
    Credits used: 0
-Erik

Router still show ISDN up on "sh isdn ac" command even when ISDN down.

Hi experts,
I encounter a situation where my router still showing the isdn is up (in "sh isdn ac" command) even when the ISDN is down (I shut it down). Is it an IOS bug?
My router is Cisco 3640 with IOS Version 12.3(21). The IOS are currently upgrade from Version 12.2(6a).
The ISDN is a backup for leased line to MPLS. It will first call to MPLS nearest node LAC router, and if that failed, it will call to HQ as a last result.
Thanks.
Azmir.

This has to be a bug. Please check the bug navigator. Also, the show isdn status is showing the clear picture. The layer 3 status is showing as 0 active calls. That means it is not able to clear the isdn call history data.
--Pls rate if useful--

Configuring RAS with BRI ISDN.

Hello all,
I have maybe very basic question
but I have studied a lot of guides
about configuring RAS with ISDN interface
but Im not still sure how to build some
reasonable solution.
Could someone help me with this:
1.)what configuration commands I need to connect from Branch to HQ on both routers. Pls no excess configuration commands ..only these I really need.
2.)what commands I need to do backup of my internet connection , for instance serial interface?
BR
jl

Hi,
see the following links :
http://www.cisco.com/warp/public/793/access_dial/ddr_dialer_profile.html
http://www.cisco.com/warp/public/793/access_dial/ddr_9347.html
http://www.cisco.com/warp/public/125/fr_isdn_backup.html
http://www.alliancedatacom.com/manufacturers/cisco-systems/dial_backup/backup_dialer.asp
Mehrdad

Management-acces on Router 3825 via VPN (snmp)

Hi,
I'm using "management-access" command on all PIX I manage to get snmp info from ipsec tunnel (management-access inside) => no problem
Now I'm new with router conf, and I did not find the same command to do that.
So how to access inside interface from VPN... and in my case to get snmp info ?
thanks by advance
Regards
Nicolas

By default there is no access-control on the router. You can snmp poll 'ANY' interface from anywhere. Unless you are running some firewall type feature on the router.
Farrukh

Problem connecting isdn bri voice interface to pstn

i'm trying to configure my ISDN BRI NT/TE voice interface card (VIC-2BRI-NT/TE) on router 3825 to link to my PSTN provider. This must allow my Cisco IP phones to pass call to the PSTN through my call manager 4.1.
I suscribe to two isdn line. The provider told me that the SWITCH TYPE is VN6 (COTE d'IVOIRE or Ivory Coast).
For my bri configuration, see file "interfaces configuration..."
My problem is that when i pass call from my Ip telephony network, the first call goes well. But after this first call, when i type the command isdn status, i can see that the layer 1 of my isdn interfaces are DEACTIVATED, and after a few minutes, it turn back to ACTIVE. During these minuite, i can't pass any call through my isdn interface.
for outputs of show isdn status command, and isdn debug q931 commands
see file "show isdn status and debug..."
Notice: when the status of the isdn layer is in the deactvated status, i can receive call from the pstn, but i can't passe call to pstn (the state changes to ACTIVE when incomming call from pstn arrive, but still stay DEACTIVATED when outgoing call is initiated)
Please help me

I've entered the "isdn transition-delay 1" interface command and things seem to work well.According to the IOS help on my router,this command clears the ISDN D-CHANNEL after a delay of 1 second.
But i would like to get more information on this command, and also on the isdn layer 2 and 3 timers, and even possible on all the "isdn" interface command option.
THANKS

ISDN backup for ADSL connected sites using separate router

In our set-up we have a central site with a large number of remote sites connected.
We have moved a number of remote sites from ISDN connections to ADSL connections. However, we would like to keep the ISDN and use it for backup.
The problem I have is - how do I implement ISDN backup with our current set-up? From the documentation, I can see how to do this for more "straightforward" set-ups but not for the set-up we have! Let me explain:
At the central site, we have a Cisco 7206 router. The ISDN connected sites connect directly to this router (which is configured with a large number of dialer map statements for each site)
The 7206 connects to a PIX515E firewall. The ADSL connected sites connect over the public internet using IPSEC with the tunnels terminating on the PIX.
The 7206 router contains static routes for the ADSL connected sites, pointing to the firewall.
At the remote sites, we have a Cisco 837 router for the ADSL connection.
This is connected (via ethernet) to the router we want to use for ISDN backup - a Cisco 800. The 837 and 800 are configured with HSRP.
However, at the moment, if the 837 or the ADSL link was to go down, there would be no means to connect to the central site. How can we configure this to use the 2nd router for ISDN backup, given our set-up?
Any suggestions would be greatly appreciated!
(incidentally, I have only recently joined this company and have taken this over, without any information to go on as to why things are set up as they are !)

Hello again,
I think you can pretty much ignore my last message. I've done a bit more digging and I think I have a better idea of what you mean now!
Lets see if I've got this about right. To recap:
I need to set up a GRE tunnel between the remote site and 7206 router at head office, which in turn would be using IPSEC tunnel between remote router and PIX.
So, steps required:
1) set up IPSec tunnel to to PIX (this is the way it is already currenly configured - am I right in thinking no further configuration would be required as far as the PIX is concerned, for the new set-up?)
2) set up GRE tunnel between remote ADSL router and 7206 - requires tunnel interface on both router with start point and end point configured. Use GRE keepalive to enable the line protocol to be brought down if the far end cannot be reached.
3) Add static routes on ADSL router to reach head office network via tunnel interface
4) Add static route on 7206 router to reach remote network via tunnel interface
5) Configure ISDN map statement on 7206 mapping remote network to ISDN number
6) Configure "floating" static routes on 7206 to use ISDN to reach remote network
7) Configure HSRP on ADSL and ISDN routers with tracking of tunnel interface. If tunnel interface goes down, then ISDN router takes over as active.
8) Configure static routes on ISDN router to point to head office network using BRI0 interface.
So, under normal operation, traffic between head office and remote office will be routed across the GRE tunnel using the ADSL link.
If the ADSL link was to go down then the GRE tunnel would also go down. So, the 7206 would then use the floating static routes to reach the remote network via the ISDN connection.
The ISDN router would take over as active at the remote site since the tunnel interface would have gone down, forcing the HSRP to failover.
Does that all sound about right? Is there anything I've missed?
I'll start trying to put some configurations together when I get the chance - but, if its ok, I'll probably run these past you too, just to make sure they seem correct!
Thanks,
Neil

Cisco 876 ADSL over ISDN Router

I am facing some problem in using ISDN bri S/T interface for connectivity to HO PRI router.I am not using the ATM interface of this router.The isdn status always shows that the isdn layer 1 and 2 is deactivated. IF i connect the same bri cable to other isdn router it works fine.
Is their any special configuration or command required in 876 router for the isdn dialing?
I found on cisco that the 876 router ISDN bri S/T interface is for the out-of-band mangement and dial backup.
Can i use this interface for the normal isdn dialing?
need some clarification.
regards,
khalid siddiq

Find the attach detail.
SCIENTECH-AVEER#
SCIENTECH-AVEER#sh runn
SCIENTECH-AVEER#sh running-config
Building configuration...
Current configuration : 1505 bytes
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname SCIENTECH-AVEER
boot-start-marker
boot-end-marker
username INET-Rou-ESA password 0 cisco123
no aaa new-model
ip subnet-zero
ip cef
no ftp-server write-enable
isdn switch-type basic-net3
isdn tei-negotiation first-call
interface BRI0
description connected to HQ PRI
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
ppp authentication chap
interface ATM0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
interface FastEthernet0
no ip address
interface FastEthernet1
no ip address
shutdown
interface FastEthernet2
no ip address
shutdown
interface FastEthernet3
no ip address
shutdown
interface Vlan1
ip address 192.168.201.25 255.255.255.0
interface Dialer0
ip address negotiated
encapsulation ppp
dialer pool 2
dialer string 404444
dialer-group 1
router rip
network 192.168.201.0
network 192.168.251.0
ip classless
no ip http server
no ip http secure-server
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
control-plane
line con 0
password gbm4ibm
login
no modem enable
transport preferred all
transport output all
line aux 0
transport preferred all
transport output all
line vty 0 4
password gbm4ibm
login
transport preferred all
transport input all
transport output all
scheduler max-task-time 5000
end
SCIENTECH-AVEER# sh ver
Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 12.3(8)YI2, RE
LEASE SOFTWARE (fc1)
Synched to technology version 12.3(10.3)T2
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 14-Jun-05 18:58 by ealyon
ROM: System Bootstrap, Version 12.3(8r)YI2, RELEASE SOFTWARE
ROM: Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 12.3(8)YI
2, RELEASE SOFTWARE (fc1)
SCIENTECH-AVEER uptime is 22 hours, 13 minutes
System returned to ROM by reload
System image file is "flash:c870-advsecurityk9-mz.123-8.YI2.bin"
Last reload reason: Reload command
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
Cisco 876 (MPC8272) processor (revision 0x100) with 118784K/12288K bytes of memo
ry.
Processor board ID FCZ100223M7
MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10
4 FastEthernet interfaces
1 ISDN Basic Rate interface
1 ATM interface
128K bytes of non-volatile configuration memory.
24576K bytes of processor board System flash (Intel Strataflash)
Configuration register is 0x2102

Problems dialing from a external modem to a isdn router

Hi,
I have trouble with my modem dial-in in an other router using his isdn interface.
The problem looks like the following:
The calling router:
router-2523#debug dialer events
Dial on demand events debugging is on
router-2523#ping 172.16.4.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.4.1, timeout is 2 seconds:
00:17:50: Se5 DDR: rotor dialout [best] least recent failure is also most recent failure
00:17:50: Se5 DDR: rotor dialout [best] also has most recent failure
00:17:50: Se5 DDR: rotor dialout [best]
00:17:50: Se5 DDR: Dialing cause ip (s=172.16.4.2, d=172.16.4.1)
00:17:50: Se5 DDR: Attempting to dial 51
00:17:50: CHAT5: Attempting async line dialer script
00:17:50: CHAT5: Dialing using Modem script: Dialout & System script: none
00:17:50: CHAT5: process started
00:17:50: CHAT5: Asserting DTR
00:17:50: CHAT5: Chat script Dialout started.....
Success rate is 0 percent (0/5)
router-2523#
00:18:02: CHAT5: Found abort string BUSY expecting CONNECT
00:18:02: CHAT5: Chat script Dialout finished, status = Connection aborted
00:18:02: Se5 DDR: disconnecting call
router-2523#
The called router:
router-2503-II#debug isdn events
ISDN events debugging is on
router-2503-II#debug isdn q931
ISDN Q931 packets debugging is on
router-2503-II#
00:18:58: ISDN BR0: RX <- SETUP pd = 8 callref = 0x01
00:18:58: Bearer Capability i = 0x9090A3
00:18:58: Channel ID i = 0x8A
00:18:58: Progress Ind i = 0x8583 - Origination address is non-ISDN
00:18:58: Calling Party Number i = 0x01, 0x83, '15', Plan:ISDN, Type:Unknown
00:18:58: Called Party Number i = 0x81, '51', Plan:ISDN, Type:Unknown
00:18:58: CCBRI_Go Fr L3 pkt (Len=27) :
00:18:58: 5 1 81 90 4 3 90 90 A3 18 1 8A 1E 2 85 83 6C 4 1 83 31 35 70 3 81 35 31
00:18:58:
00:18:58: ISDN BR0: Incoming call id = 0x000B, dsl 0
00:18:58: ISDN BR0: LIF_EVENT: ces/callid 1/0xB HOST_INCOMING_CALL
00:18:58: ISDN BR0: HOST_INCOMING_CALL: (non-POTS) VOICE
00:18:58: ISDN BR0: HOST_INCOMING_CALL: (1) call_type = VOICE
00:18:58: ISDN BR0: HOST_INCOMING_CALL: voice_answer_data = FALSE call type is VOICE ALAW
00:18:58: ISDN BR0: Event: Received a VOICE call from 15 on B2 at 64 Kb/s
00:18:58: ISDN BR0: Event: Accepting the call id 0xB
00:18:58: ISDN BR0: INCOMING CALL: VOICE ERROR: Bearer capability not available(0x3A): bchan 1, call id B
00:18:58: ISDN BR0: process_disconnect(): call id 0xB, call type is VOICE, b_idb 0x24F470, ces 1, cause Bearer capability not available(0x3A)
00:18:58: ISDN: get_isdn_service_state(): idb 0x24F470 bchan 3 is_isdn 1 Not a Pri
00:18:58: CCBRI_Go Fr Host InPkgInfo (Len=9) :
00:18:58: 7 0 1 0 B 3 18 1 8A
00:18:58:
00:18:58: CCBRI_Go Fr Host InPkgInfo (Len=13) :
00:18:58: 5 0 1 0 B 3 8 1 BA 8 2 80 BA
00:18:58:
00:18:58: ISDN BR0: TX -> CALL_PROC pd = 8 callref = 0x81
00:18:58: Channel ID i = 0x8A
00:18:58: ISDN BR0: TX -> DISCONNECT pd = 8 callref = 0x81
00:18:58: Cause i = 0x80BA - Bearer capability not available
00:18:58: ISDN BR0: RX <- RELEASE pd = 8 callref = 0x01
00:18:58: CCBRI_Go Fr L3 pkt (Len=4) :
00:18:58: 4D 1 81 97
00:18:58:
00:18:58: ISDN BR0: LIF_EVENT: ces/callid 1/0xB HOST_DISCONNECT_ACK
router-2503-II#
00:18:58: ISDN: get_isdn_service_state(): idb 0x24F470 bchan 3 is_isdn 1 Not a Pri
00:18:58: ISDN BR0: HOST_DISCONNECT_ACK: call type is VOICE
00:18:58: ISDN BR0: HOST_DISCONNECT_ACK: VOICE ERROR: Bearer capability not available(0x3A): bchan 1, call id B
00:18:58: ISDN BR0: TX -> RELEASE_COMP pd = 8 callref = 0x81
router-2503-II#
Does anyone know whats going wrong and why I could not get a connection th the 2503-II router? When I try the connection from an other router using isdn on both sides the connection works fine...
I added the configuration of both routers in the attachments...
Best Regards
Marcos

Hi,
I configured the ISDN BRI Intaerface on the Router-2503-II in the following manner:
router-2503-II#sh run int bri 0
Building configuration...
Current configuration : 133 bytes
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
isdn incoming-voice data
end
router-2503-II#
after this I tried it again and got the following debug output:
router-2503-II#
00:11:54: ISDN BR0: RX <- SETUP pd = 8 callref = 0x01
00:11:54: Bearer Capability i = 0x9090A3
00:11:54: Channel ID i = 0x8A
00:11:54: Progress Ind i = 0x8583 - Origination address is non-ISDN
00:11:54: Calling Party Number i = 0x01, 0x83, '15', Plan:ISDN, Type:Unknown
00:11:54: Called Party Number i = 0x81, '51', Plan:ISDN, Type:Unknown
00:11:54: CCBRI_Go Fr L3 pkt (Len=27) :
00:11:54: 5 1 81 90 4 3 90 90 A3 18 1 8A 1E 2 85 83 6C 4 1 83 31 35 70 3 81 35 31
00:11:54:
00:11:54: ISDN BR0: Incoming call id = 0x0008, dsl 0
00:11:54: ISDN BR0: LIF_EVENT: ces/callid 1/0x8 HOST_INCOMING_CALL
00:11:54: ISDN BR0: HOST_INCOMING_CALL: (non-POTS) VOICE
00:11:55: ISDN BR0: HOST_INCOMING_CALL: (1) call_type = VOICE
00:11:55: ISDN BR0: HOST_INCOMING_CALL: voice_answer_data = TRUE call type is VOICE ALAW
00:11:55: ISDN BR0: call id 0x8 call treated as DOV
00:11:55: ISDN BR0: Event: Received a DATA call from 15 on B2 at 64 Kb/s
00:11:55: ISDN BR0: Event: Accepting the call id 0x8
00:11:55: ISDN BR0:2: Incoming call rejected, unbindable
00:11:55: ISDN BR0: process_disconnect(): call id 0x8, call type is DATA, b_idb 0x24F470, ces 1, cause Call rejected(0x15)
00:11:55: ISDN: get_isdn_service_state(): idb 0x24F470 bchan 3 is_isdn 1 Not a Pri
router-2503-II#
00:11:55: ISDN BR0: HOST_INCOMING_CALL: DIALER ERROR 1: bchan 1, call id 8
00:11:55: CCBRI_Go Fr Host InPkgInfo (Len=13) :
00:11:55: 5 0 1 0 8 3 8 1 95 8 2 80 95
00:11:55:
00:11:55: ISDN BR0: LIF_EVENT: ces/callid 1/0x8 HOST_DISCONNECT_ACK
00:11:55: ISDN: get_isdn_service_state(): idb 0x24F470 bchan 3 is_isdn 1 Not a Pri
00:11:55: ISDN BR0: HOST_DISCONNECT_ACK: call type is VOICE
00:11:55: ISDN BR0: TX -> RELEASE_COMP pd = 8 callref = 0x81
00:11:55: Cause i = 0x8095 - Call rejected
router-2503-II#
Have you any ideas where to look from here?
Regards
Marcos

2 isdn lines on single bri

Is it possible to have two isdn lines(total 4B 2D channels) running on a single physical bri interface using dialer profile (or any possible method)?
I have seen cisco example which provide hub-and-spoke topology design but no indication whereby single bri on each end of the router supports multiple isdn.
Any help or advice will be deeply appreciated.

hi
its not possible to have 4B channels and 2D channels in a single physical isdn line,it does come with 2B and 1D channel.
i feel you are trying to pool 2 or 3 isdn lines under single dialer profile and want to use for some dialin/dialout purpose,thats very much possible in clubbing them like this.
But do throw some more lite about your requirement so that more inputs will be keyed in..
but still to startup with do find the link attached which speaks about different scenarios in the dial technology.
http://cisco.com/en/US/partner/tech/tk801/tk133/tech_configuration_examples_list.html
regds

ISDN BRI U

Hi All,
I recently purchased Cisco 2811 with ISDN BRI U HWIC for ISDN connectivity. Unfortunately, when I connect the card to my ISDN NT box, the light on the ISDN NT box keeps flashing signifying no connectivity, while there are no signs of light behind the HWIC card either. When I swapped this out with a normal ISDN BRI S/T card, I can see a steady light on the NT box and also light behind the HWIC on the router meaning there is connectivity between the router and the ISDN NT box.
A quick check on Cisco website shows that these type of cards require RJ-49C connector (see site below)
http://www.cisco.com/en/US/prod/collateral/modules/ps5949/data_sheet_c78_439537.html
Can someone be kind enough to let me know if/why normal RJ-45 cables cannot be used? Also, I am struggling to get information online on these RJ-49C connectors.
Thanks
Austin

ISDN needs proper cabling, not Ethernet cabling.
The pinour is in the product manual.

IDLE-TIMEOUT IN ISDN BRI INTERFACE

If bri isdn interface is backup by serial interface. Two commands are president for timeout bri interface
one under backup serial interface
1. backup delay 10 30
The other under bri interface
2. dialer idle-timeout 800
My query is when interface serial comes back what will be time bri interface to in the disconnect position 30 or 800.

hi
AFAIK ideally the time would be 830 (30+800) coz the traffic will only get diverted back to serial interface after its observed stable for the configured time period which is 30 here.
Once it starts getting the traffic thru main serial interface the dialer interface will become idle..
so it will have to stay upto the timeout period (800 here)configured to get disconnected..
regds

ROUTER 3825 BRI ISDN SUBCOMMAND DOCUMENTATION

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