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

Similar Messages

Understanding ISDN BRI Voice Interface Cards

Hi all,
I was wondering about the VIC-2BRI-NT/TE VIC:
In NT mode, what kind of BRI interface I can connect to it? Is it a BRI S/T interface (The device that is been connected to it)?
I got a PBX that has BRI S/T interfaces... can i connect them to this card (while in NT state)?
Will DID work in this case?
Thanks,
Edy.

Hi Malleyne,
Thanks for the response.
I looked at the document, and I found my answers indeed. The only way to understand from the document (or any other on the net) that it will connect to an S/T interface is by the fact is says it acts as a NT1 device. Couldn't they make it more simple? :)
Thanks again,
Edy.

Connecting to an ISDN BRI on a router from a PSTN line from remote site..!!

Friends,
I have a 1812 at HO with WIC1 BS/T Card, connected it to an ISDN BRI line.One of my critical remote location uses Leased circuit to reach my HO Router.But in case if LL goes down,some of the important PC's at the remote site should be able to dial to HO Router BRI Number using PSTN line, get connected and continue, ip address assigned from HO Router and access the application... Is any way available...

Hi Arnab.
You need to configure dial backup through AUX port. You need to connect a normal PSTN line to a modem which in turn is connected to your AUX port. You will have to configure a chat script which you can find in the attachmnet. The attachment is a working example in one of my routers.
You also have to create an ASYNC interface. Check that in the attached file also
--Pls rate if useful---

ISDN BRI connection won't stay up

Hi all,
I'm trying to get the S/T port on 3 routers to connect thru ISDN BRI. Thus far I've only been able to get this to work on a 1601.
My attempts on an 878 and a soho96 are less succesfull.
Both are able to establish a connection, but it won't stick.
Attached is the output of the debug isdn q921. The top shows the succesfull connection on the 1601, the bottom shows the other result. The only discrepancy I can find is the lack of a IS.DN BR0: TX -> INFOc message after the tei exchange is succesfull.
I am in the dark however on whether this is a symptom or the cause of the problem. Searches on the cisco domain don't turn up much on this part of the layer 2 troubleshooting.
Any thoughts are welcome on this subject.
Regards
Wouter

Hello,
there is an earlier thread (see the link below), where the problem was related to the fact that the 878 needs the Advanced Enterprise IOS (and not the Advanced IP Services IOS) for the ISDN interface to function, you might want to check if you are running into the same issue.
http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40%40.1dd96928/10#selected_message
Regards,
GNT

No dialer command under ISDN BRI interface

Hi all,
I have a 2901 router voice bundle with 4 ISDN BRI ports and would like to have them bundled under Dialer1 interface. Unfortunately it doesn't give me option for Dialer command under BRI interface as expected.
router(config-if)#int bri0/0/0
router(config-if)#dia
router(config-if)#dia
^
% Invalid input detected at '^' marker.
router(config-if)#dialer
^
% Invalid input detected at '^' marker.
router(config-if)#
I assume it's down to the UC license installed on the device but not sure. Does the ISDN BRI interface behave in different way under this license?
Pasting portion of "show ver" as well.
Cisco CISCO2901/K9 (revision 1.0) with 479232K/45056K bytes of memory.
Processor board ID
2 Gigabit Ethernet interfaces
4 ISDN Basic Rate interfaces
1 terminal line
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)
License Info:
License UDI:
Device# PID SN
*0 CISCO2901/K9
Technology Package License Information for Module:'c2900'
Technology Technology-package Technology-package
Current Type Next reboot
ipbase ipbasek9 Permanent ipbasek9
security None None None
uc uck9 Permanent uck9
data None None None
Configuration register is 0x2102

Hi,
Snippet of "sh ver" with IOS version is below:
router#show ver
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(4)M5, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Fri 13-Sep-13 14:59 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)
router uptime is 2 days, 21 hours, 47 minutes
System returned to ROM by reload at 16:48:03 UTC Mon Aug 18 2014
System restarted at 16:50:01 UTC Mon Aug 18 2014
System image file is "flash0:c2900-universalk9-mz.SPA.152-4.M5.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command
The output of trying to type dialer command is in the initial post, I'm also pasting all available commands under bri0/0/0.
router(config-if)#int bri0/0/0
router(config-if)#?
Interface configuration commands:
aaa Authentication, Authorization and Accounting.
access-expression Build a bridge boolean access expression
arp Set arp type (arpa, probe, snap), timeout, log
options or packet priority
authentication Auth Manager Interface Configuration Commands
autodetect Autodetect Encapsulations on Serial interface
bandwidth Set bandwidth informational parameter
bgp-policy Apply policy propagated by bgp community string
bridge-group Transparent bridging interface parameters
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
clns CLNS interface subcommands
clock Configure serial interface clock
cwmp Configure CPE WAN Management Protocol(CWMP) on this
interface
dampening Enable event dampening
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
dot1q dot1q interface configuration commands
dot1x Interface Config Commands for IEEE 802.1X
down-when-looped Force looped serial interface down
encapsulation Set encapsulation type for an interface
ethernet Ethernet interface parameters
exit Exit from interface configuration mode
flow-sampler Attach flow sampler to the interface
full-duplex Configure full-duplex operational mode
h323-gateway Configure H323 Gateway
half-duplex Configure half-duplex and related commands
help Description of the interactive help system
history Interface history histograms - 60 second, 60 minute
and 72 hour
hold-queue Set hold queue depth
ip Interface Internet Protocol config commands
iphc-profile Configure IPHC profile
ipv6 IPv6 interface subcommands
isdn ISDN Interface configuration commands
isis IS-IS commands
iso-igrp ISO-IGRP interface subcommands
keepalive Enable keepalive
line-power Provide power on the line.
llc2 LLC2 Interface Subcommands
load-interval Specify interval for load calculation for an
interface
logging Configure logging for interface
loopback Configure internal loopback on an interface
mab MAC Authentication Bypass Interface Config Commands
mac-address Manually set interface MAC address
macro Command macro
metadata Metadata Application
mop DEC MOP server commands
mtu Set the interface Maximum Transmission Unit (MTU)
netbios Use a defined NETBIOS access list or enable
name-caching
network-clock-priority Configure clock source priority
no Negate a command or set its defaults
ntp Configure NTP
ospfv3 OSPFv3 interface commands
pulse-time Force DTR low during resets
rate-limit Rate Limit
redundancy RG redundancy interface config
routing Per-interface routing configuration
sdllc Configure SDLC to LLC2 translation
serial serial interface commands
service-policy Configure CPL Service Policy
shutdown Shutdown the selected interface
smds Modify SMDS parameters
snapshot Configure snapshot support on the interface
snmp Modify SNMP interface parameters
source Get config from another source
tarp TARP interface subcommands
timeout Define timeout values for this interface
topology Configure routing topology on the interface
transmit-interface Assign a transmit interface to a receive-only
interface
trunk-group Configure interface to be in a trunk group
tx-ring-limit Configure PA level transmit ring limit
vpdn Virtual Private Dialup Network
vrf VPN Routing/Forwarding parameters on the interface
waas WAN Optimization
router(config-if)#

ISDN BRI INTERFACE

Isdn bri interface is used as backup by serial interface
backup delay 10 60
under bri interface following command is also configured
dialer idle-timeout 900
what will be idle timeout of bri interface if serial interface comes back and functional.

Hello Jabbar,
this looks like a cisco BCRAN question, here it goes:
the backup delay 10 60 , means that it will take 10 seconds before the secondary link comes up, after the primary goes down, and it will take 60 seconds after the primary goes back up, before the secondary goes down.
dialer idle-timeout 900:
this command indicates how long the call can stay idle before it is disconnected.
from cisco:
"This command is used on lines for which there is no contention. When contention occurs, the dialer fast-idle command is activated. For example, when a busy line is requested to send another packet to a different destination than it is currently connected to, line contention occurs and the dialer fast-idle command is activated.
By default, this command applies to inbound and outbound calls. For example, if a receiving system needs to make outgoing calls, you might configure it with a short idle timeout.
Only packets that match the dialer group reset the idle timer."
So, I guess it would be 900s
HTH,
please rate this post if it does,
Vlad

Error: there is a problem connection to the GPRS service in your registered home network, error trying to make data connection. this may be casued by a voice call, a wired activesync connection or inncorrect network setting

like 2 weeks ago i called in to att to see how much is the data plan and it would end up costing $30.
so i was like screw that. well they figured that i got a new phone replacing the LG shine. so they asked
for to call this number so they can recieve data which would updated the system that i have a plam treo 750.
ever since this conflict i can't send picture messages. i get that problem. everytime i attempt to send a picture
i recieve this.
- there is a problem connection to the GPRS service in your registered home network.
- then i get a test that says error trying to make data connection. this may be casued by a voice call,
a wired activesync connection or inncorrect network setting.
please someone help me.
btw. hard reset and soft reset did not work for me.
Post relates to: Treo 750 (AT&T)

problem fix, i had to call in. customer serivce. and when i called to ask about the plan. they blocked it. so i had to unblock my internet.
Post relates to: Treo 750 (AT&T)

2509 Access Server and ISDN BRI connection

Hi yall..
I'm a newbe to CISCO havin just completed my CCNA.I would like to know how should i configure a 2509's async to communicate with a windows PC on the other end via ISDN.I have 2 TA's 1(extenal and internal )modems and 2 ISDN BRI line connections with me.plz help..
regards
Pranny..:)

Hi,
Please see the config examples.
http://www.cisco.com/en/US/tech/tk801/tk133/technologies_configuration_example09186a00800943ad.shtml
http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_configuration_guide_chapter09186a008008722c.html
HTH,
-amit singh

Configuration requried for 4 port ISDN S/T Interface card as backup link

Dear All,
I have ISDN BRI 4 lines Interface card installed in my company router cisco 2821, I want to configure all 4 BRI lines as an backup link of 512Kbps with same ISP which is directly connected on Serial0/2/0 with 1mbps bandwidth. If my Serial link become down. ALL 4 BRI group dail same ISP with full loaded 512kbps bandwith link.
Router IOS detail c2800nm-ipbasek9-mz.124-15.T5.bin
and I have no idea how to impelement in real senerio.
if any one using same senerio in his live enviroment please send me configration....!
waiting you reply....

Respected Sir,
Thanks for your advise. But This is very helpfull forum of cisco where cisco highly professional persons help their juniors sitting allaround the world, therefore as a junior I have posted my problem here someone give me guide line. How to configure it...?
Because no one is perfect in whole world everyone is trying to learn more and more in his field, so this is my humbly request if you looking into this matter and help me out.
I will be very thankfull to you.
regards

Problem in calling BRI from PRI

Hi,
I am having problem in calling BRI from PRI. I am getting below message while debugging. Also note that calling from BRI to PRI is successful.
Mar 2 23:38:22: ISDN BR0/0 Q931: RX <- SETUP pd = 8 callref = 0x04
Sending Complete
Bearer Capability i = 0x8890
Standard = CCITT
Transer Capability = Unrestricted Digital
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info
Calling Party Number i = 0x2183, '1726601501'
Plan:ISDN, Type:National
*Mar 2 23:38:22: ISDN BR0/0:1: Incoming call rejected, unbindable
*Mar 2 23:38:22: ISDN BR0/0 **ERROR**: host_incoming_call: DIALER ERROR 0x1: b channel 0, call id 0x15E
*Mar 2 23:38:22: ISDN BR0/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x84
Cause i = 0x8095 - Call rejected
Pls help me.
Anis
9229109694

Dear Dharmesh,
Can u pls explain where to enable PPP Multilink.
Dear p.bevilacqua ,
I did what u told (configure "ppp chap username" under dialer interface), but the problem is same.
Anis

Cisco 4-Port ISDN-BRI Network Module

Cisco 4-Port ISDN-BRI Network Module
what does the BRI mean?
I have this module in a 2600 series router. Can it be used for basic LAN connection (like a hub)?

First, to answer your question: No, you cannot.
ISDN is a Telco technology and protocol suite.
"BRI" stands for "Basic Rate Interface," also described as "2B+D" for two Bearer channels and a "D" channel, which is used for control signaling in some configurations, and additional bandwidth in others.
Max throughput is either 128K (2 X 56K or 64Kbps per channel) or 144Kbps (2B+16K that may be available in the D channel depending on your config.
ISDN requires an intermediate telco-style switch between the clients and can't be used back-to-back directly.
Good Luck
Scott

ISDN BRI backup - Disconnect after 1 sec

There is a ISDN BRI backup to Serial IF on a router.BRI seems to be able to cennect with opossite site, but after 1 sec comes Disconnect(see attachment).I tried Floating static routes and Dialer watch as well, with the same result. Can anybode help me? Thanks

There is no aaa new-model statment on both side.I`ve rewrite user/psw and added ppp chap hostname ... command.
output of isdn status follows:
cpp-poprad#
Sep 20 14:52:00.647: %DIALER-6-BIND: Interface BR0/1/0:1 bound to profile Di0
Sep 20 14:52:00.651: %LINK-3-UPDOWN: Interface BRI0/1/0:1, changed state to up
Sep 20 14:52:00.651: %ISDN-6-CONNECT: Interface BRI0/1/0:1 is now connected to 0524684841 N/A
Sep 20 14:52:01.655: %ISDN-6-CONNECT: Interface BRI0/1/0:1 is now connected to 0524684841 cpp-poprad
Sep 20 14:52:01.655: %ISDN-6-DISCONNECT: Interface BRI0/1/0:1 disconnected from 0524684841 cpp-poprad, call lasted 1 seconds
Sep 20 14:52:01.659: %LINK-3-UPDOWN: Interface BRI0/1/0:1, changed state to down
Sep 20 14:52:01.659: %DIALER-6-UNBIND: Interface BR0/1/0:1 unbound from profile Di0sh isdn statu
Global ISDN Switchtype = basic-net3
ISDN BRI0/1/0 interface
dsl 2, interface ISDN Switchtype = basic-net3
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 71, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 2 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
cpp-poprad#sh isdn act
ISDN ACTIVE CALLS
Call Calling Called Remote Seconds Seconds Seconds Charges
Type Number Number Name Used Left Idle Units/Currency
cpp-poprad#
Sep 20 14:52:18.295: %LINK-3-UPDOWN: Interface BRI0/1/0:1, changed state to up
Sep 20 14:52:18.295: %DIALER-6-BIND: Interface BR0/1/0:1 bound to profile Di0
Sep 20 14:52:18.299: %ISDN-6-CONNECT: Interface BRI0/1/0:1 is now connected to 05246848411 N/A
Sep 20 14:52:18.351: %ISDN-6-CONNECT: Interface BRI0/1/0:1 is now connected to 05246848411 cpp-poprad
Sep 20 14:52:18.531: %LINK-3-UPDOWN: Interface BRI0/1/0:1, changed state to down
Sep 20 14:52:18.531: %DIALER-6-UNBIND: Interface BR0/1/0:1 unbound from profile Di0sh isdn act

Isdn bri one branch to dial multiplcae isdn bri

I purchase four cisco router 1841 and four isdn BRI for cisco router for connecting diffrent four location through ISDN Phone line.
sir, we want to each one comunicate to other three on demand using defined dialer to each branch.
Sir help me how to configure ethernet 0/0, bri0/0/0 and Dialer profile.
Please send me compliter Script for my location for router above.

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 BRI for Backup and remote Support

Hello,
is it possible to configure an ISDN BRI
to use them for Backup and if no Backup is up (primary connection works)i can use
the ISDN BRI for Dialin (Remote Administration)?
My Backup Solution works fine but i do not know, how i have to configure the ISDN BRI so, that acceppt my ISDN Call for Remote Administration.
Thanks in advance
Lorenz

Hi
You can configure 2 dialer interfaces one for dial in and another one for the dial out purpose.
make the 2nd dialer interface as a backup interface for your primary interface and define the floating routes accordingly..
would suggest to go thru the following link which has the whole lot of possible config scenarios discussed and it may help u out in getting the things place ..
http://www.cisco.com/en/US/tech/tk801/tk133/tech_configuration_examples_list.html
regds

I am having problems connecting to home wifi. It was working, but now all I get is a blank white screen. I re-booted with no success.

I am having problems connecting to home wifi. It was working, but now all I get is a blank white screen. I re-booted with no success.

Hi, blank white screen where exactly?
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.5, 10.6, 10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x/10.8.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
If using Wifi/Airport...
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
(There may be better or faster DNS numbers in your area, but these should be a good test).
Click OK.

Problem connecting isdn bri voice interface to pstn

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