Question

CISCO 2801 VoIP configuration

Asked by: tztrh

Could anybody post an example of simple VoIP configuration on CISCO 2801 router. I have to configure it so it could handle trafic for 10 phones on simple network. phones don't have to go on public network. they are used only for internal comunication (on local network).
I have no expirience with this so I'm stuck.

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Asked On
2009-03-20 at 06:03:19ID24249097
Tags

CISCO

,

VoIP

Topics

Voice Over IP

,

Network Routers

Participating Experts
1
Points
500
Comments
6

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Answers

 

by: tztrhPosted on 2009-03-21 at 14:36:09ID: 23949004

I just need som guidelines. where to start?

 

by: ged125Posted on 2009-03-22 at 11:28:20ID: 23952633

Is this for CUCM?  CUCME?  Do you want to run MGCP on the gateway, h.323, sip?  What kind of PSTN trunks do you have?  PRI, CAS, Analog?

 

by: tztrhPosted on 2009-03-22 at 14:09:17ID: 23953261

i just have 10 ip phones and 2801 router. they will all be connected to the same network and i have to be able to call each one of them from any of them. they only have to talk to each other. they will not be able to call outside this network, they serve only for internal comunication.

 

by: ged125Posted on 2009-03-22 at 15:38:25ID: 23953712

Based on what you have described, the config below should work out nicely for you.  I am assuming you are using Cisco 7900 series IP phones and you have a load of IOS on the 2801 that will support Communications Manager Express.  Having said that, as long as your phones are connected to the same segment as FastEthernet0/0 and they are configured to obtain an IP address through DHCP, they should come up as extensions 2000 - 2009.  Once they come up, you should be able to dial each other, and that's it.  This config does not include any Central Office trunk configuration or voicemail.  It should get you started.

If you need to download IOS and CME files, here is a link (Cisco CCO acount required):
http://www.cisco.com/cgi-bin/tablebuild.pl/ip-key

The latest version is CME 7.1 and requires IOS 12.4(22)YB.

Good Luck!


!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CUCME
!
boot-start-marker
boot-end-marker
!
no logging buffered
enable password class
!
no aaa new-model
!
resource policy
!
ip dhcp excluded-address 1.1.1.1 1.1.1.49
ip dhcp excluded-address 1.1.1.151 1.1.1.254
!
ip dhcp pool CUCME
 netowrk 1.1.1.0 /24
 default-router 1.1.1.1
 option 150 ip 1.1.1.1
!
!
ip cef
! 
!
no ip domain lookup
!
!
!
voice-card 0
no dspfarm
!
interface FastEthernet0/0
ip address 1.1.1.1 255.255.255.0
duplex auto
speed auto
!
!
ip http server
control-plane
!
!
telephony-service
max-ephones 10
max-dn 20
ip source-address 1.1.1.1 port 2000
auto assign 1 to 10
max-conferences 8 gain -6
transfer-system full-consult
!
!
ephone-dn 1
number 2000
!
!
ephone-dn 2
number 2001
!
!
ephone-dn 3
number 2002
!
!
ephone-dn 4
number 2003
!
!
ephone-dn 5
number 2004
!
! 
ephone-dn 6
number 2005
!
!
ephone-dn 7
number 2006
!
!
ephone-dn 8
number 2007
!
!
ephone-dn 9
number 2008
!
!
ephone-dn 10
number 2009
!
!
ephone 1
no multicast-moh
!
!
!
ephone 2
no multicast-moh
!
!
!
ephone 3
no multicast-moh
! 
!
!
ephone 4
no multicast-moh
!
!
!
ephone 5
no multicast-moh
!
!
!
ephone 6
no multicast-moh
!
!
!
ephone 7
no multicast-moh
!
!
!
ephone 8 
no multicast-moh
!
!
!
ephone 9
no multicast-moh
!
!
!
ephone 10
no multicast-moh
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password cisco
login
line vty 5 15
password cisco
login
! 
scheduler allocate 20000 1000
!
end 
                                              
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by: tztrhPosted on 2009-03-23 at 00:59:00ID: 31560506

You saved me!!! THX!!!!

 

by: tztrhPosted on 2009-03-26 at 12:58:56ID: 23994539

thx!

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