Analog and ISDN service over 3640?

[honeycutt]

Hello all, I was wondering if I would have to change up my config any to be able to offer isdn service? The router is a Cisco 3640 with digital mica modem mudules. Thanks in advance!!!

Here is the config..

------------------ show running-config ------------------


Building configuration...

Current configuration : 2535 bytes
!
version 12.3
service timestamps debug uptime
service timestamps log datetime msec
service password-encryption
!
hostname cs1
!
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
enable secret 5 <removed>
enable password 7 <removed>
!
username banks password 7 <removed>
aaa new-model
!
!
aaa authentication login default group radius local
aaa authentication login consoleport local
aaa authentication ppp default group radius
aaa authorization network default group radius if-authenticated
aaa accounting network default start-stop group radius
aaa session-id common
ip subnet-zero
!
!
ip name-server <removed>
ip name-server <removed>
!
!
isdn switch-type primary-5ess
isdn voice-call-failure 0
modemcap entry cisco:MSC=&F&D2S54=16584S0=0S29=12S21=15S62=8S63=3S34=18000S40=10S10=50
!
!
!
controller T1 1/0
framing esf
linecode b8zs
ds0-group 0 timeslots 1-24 type e&m-immediate-start
!
controller T1 1/1
framing esf
linecode b8zs
ds0-group 0 timeslots 1-24 type e&m-immediate-start
!
!
interface Ethernet0/0
ip address <removed> 255.255.255.0
half-duplex
!
interface Group-Async1
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression
async mode interactive
peer default ip address pool setup_pool
no fair-queue
ppp authentication ms-chap pap
group-range 65 88
!
interface Group-Async2
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression
async mode interactive
peer default ip address pool setup_pool
no fair-queue
ppp authentication ms-chap pap
group-range 97 120
!
ip local pool setup_pool <removed> <removed>
no ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 <removed>
!
!
!
logging trap debugging
dialer-list 1 protocol ip permit
snmp-server community <removed> RO
snmp-server community <removed> RW
snmp-server enable traps tty
radius-server host <removed> auth-port 1645 acct-port 1646
radius-server timeout 10
radius-server key 7 <removed>
radius-server vsa send accounting
radius-server vsa send authentication
!
control-plane
!
!
line con 0
login authentication consoleport
line 65 88
modem Dialin
modem autoconfigure type cisco
transport input all
autoselect during-login
autoselect ppp
flowcontrol hardware
line 97 120
modem Dialin
modem autoconfigure type cisco
transport input all
autoselect during-login
autoselect ppp
flowcontrol hardware
line aux 0
line vty 0 4
login authentication consoleport
!
!
!
end

 

[computerhighguy]

I assume your talking about getting a PRI instead of your channelized T-1s. You'll need to change the controllers from

ds0-group 0 timeslots 1-24 type e&m-immediate-start

to

Pri-group timeslots 1-24

You'll then get something that looks like this.

interface Serial1/0:23
no ip address
encapsulation ppp
timeout absolute 180 0
dialer idle-timeout 900
dialer-group 1
isdn switch-type primary-5ess
isdn incoming-voice modem
no fair-queue
ppp authentication ms-chap
ppp multilink


Then you'll add have to add dialer-group 1 to the async interface that corresponds with the PRI.


My group-synch 0 looks like this. But I also used the 3620 for dialout access as well as dial in access.

interface Group-Async1
ip unnumbered FastEthernet1/0
encapsulation ppp
timeout absolute 180 0
dialer in-band
dialer idle-timeout 900
dialer-group 1
async mode dedicated
peer default ip address pool default
no keepalive
ppp authentication ms-chap
group-range 1 30



It is what it is!!
__________________________________
A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)

 

[honeycutt]

I want to offer isdn service to customers. Is this not currently possible with a channalized t1?

 

[computerhighguy]

How are you planning on offering them ISDN? Are you talking about ISDN dial up? Then the answer is no. You must have end to end ISDN. That means they have a BRI and you have a BRI or a PRI.


It is what it is!!
__________________________________
A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)

 

[honeycutt]

Ok, that makes more sence. The reason I was confused was because of this page on cisco's site.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1826/products_feature_guide09186a0080080eef.html

If you look at --->

Figure 1: Remote Office and Telecommuter Dialing In to a Central Site

It looks like you can come in with isdn dialup and analog dialup with a CAS T1.

Guess we should just ask the phone company to switch from a T1 to PRI lines?

 

[computerhighguy]

You will find that PRIs are better and easier to troubleshoot. However, they tend to cost a bit more than T-1.


It is what it is!!
__________________________________
A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)

 

[honeycutt]

Ok well, we called the phone company and they tell us that the price for PRI lines is $800 a month compared to $450 with the chan-T1 contracts we have right now. So we will probbably hold off on PRI for now.

I also had a few questions about my config. I am trying to go through it and tweak it out, by taking out useless lines and adding things that are missing. Below are a few things I am curious about. Any help with what these lines do would be greatly apriciated! Also if something looks missing from my config, that you would add. Thanks!!

isdn voice-call-failure 0
ip tcp header-compression
no fair-queue
logging trap debugging
dialer-list 1 protocol ip permit
radius-server vsa send accounting
radius-server vsa send authentication
control-plane
flowcontrol hardware