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Community Member

Point to point Voice

Dear all,

i'm new to voice pls help me.

i have connected 2 offices using a p-t-p 128kbps leased line.routers are 2801.i have checked the connectivity

its fine.i'm using wic-1T for this connectivity on both sides. for voice purpose i have installed VIC2-FXS card.

my IOS on both sides are "c2801-ipvoice-mz.124-6.T2.bin".

and i have installed PVDM2-8 is installed on both routers.

my plan is to put 2 phones at each office.my phone is Ericsson phone model no is 4186 something its not an ip phone.so can i connect directly to fxs port.how can i configure this scenario.

i have a configuration with me can anybody verify this and give me guide lines.any reply will be appreciated with good rating.

please seee the config below.

Router> enable

Password:

Router# configure terminal

Router(config)# interface serial 0/0

Router(config-if)# ip rsvp bandwidth

Router(config-if)# ip rtp header-compression

Router# interface serial 0/0

Router(config-if)# mtu 300

Router(config-if)# interface serial 0/0.1 point-to-point

Router(config-if)# ip address 192.168.19.0 255.0.0.0

Router(config-if)# ip rsvp bandwidth

Router(config-if)# frame-relay ip rtp header-compression

West(config)# dial-peer voice 401 pots

West(config-dial-peer)# dest-pat +14085553737

West(config-dial-peer)# port 2/0/0

West(config)# dial-peer voice 402 pots

West(config-dial-peer)# dest-pat +14085554141

West(config-dial-peer)# port 2/0/1

West(config-dial-peer)# exit

West(config)#

East(config)# dial-peer voice 901 pots

East(config-dial-peer)# dest-pat +19199588282

East(config-dial-peer)# port 3/1/0

East(config)# dial-peer voice 902 pots

East(config-dial-peer)# dest-pat +19199589595

East(config-dial-peer)# port 3/1/1

East(config-dial-peer)# exit

East(config)#

Thanks in advance

Regds

Binoy

3 REPLIES

Re: Point to point Voice

Hi

I am including the config for West,

(1)Include below on ur serial interface.I have given a reserve bandwith of 32K on both ports.

Router(config-if)# ip rtp header-compression

Router(config-if)# ip rtp reserve 16384 100 32

(2)Below is the single router config.

West(config)#voice-port 2/0/0

no shutdown

comfort-noise

cptone US

signal loopStart

West(config)# voice-port 2/0/1

no shutdown

comfort-noise

cptone US

signal loopStart

West(config)# dial-peer voice 401 pots

West(config-dial-peer)# dest-pat 14085553737

West(config-dial-peer)# port 2/0/0

West(config)# dial-peer voice 402 pots

West(config-dial-peer)# dest-pat 14085554141

West(config-dial-peer)# port 2/0/1

West(config-dial-peer)# exit

West(config)# dial-peer voice 403 voice

West(config-dial-peer)# codec g729r8

West(config-dial-peer)# ip precedence 5

West(config-dial-peer)# session target ipv4:(Remote LAN IP)

West(config-dial-peer)# vad

West(config-dial-peer)# destination-pattern 19199588282

West(config)# dial-peer voice 404 voice

West(config-dial-peer)# codec g729r8

West(config-dial-peer)# ip precedence 5

West(config-dial-peer)# session target ipv4:(Remote LAN IP)

West(config-dial-peer)# vad

West(config-dial-peer)# destination-pattern 19199589595

I believe you are smart enough to make the config for the East :)

Do not forget to rate the post "as promised" :)

Regards

JD

Community Member

Re: Point to point Voice

hi JD,

thanks for your reply.JD do we need to configure or assign any ip's or values to FXS card.i'm new to voice so no idea abt all those stuffs.session target ip means which ip.

if you can give brief idea abt all these, will be a great help.

thanks & regds

Binoy.

Re: Point to point Voice

Hi

See you will have a p2p lease line.I will include the routers only.

East LAN=192.168.1.1/24

East WAN=10.0.0.1/30

West LAN=192.168.2.1/24

West WAN=10.0.0.2/30

Now you should be able to ping from 192.168.1.1 to 192.168.2.1.

The config for Voice is such that you need to assign numbers for your local ports as well as for the remote.

For local ports you are mentioning "pots"

For remote ports you mention "voice" along with the remote IP address.

Now according to the config., If u are dialing 14xxxxxx, they are instructed to go to ur local voice ports, but when u dial 19xxxx, the dialing plan has been instructed to map that number to the remote IP address.

The remote IP is the LAN ip of the remote router.For eg in EAst case the ip will be 192.168.2.1 and in west 192.168.1.1.

If you are a beginner, then dig into some of the below links.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/int_c/vclovint.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124tcg/vcl.htm

Hope this helps.

Regards

JD

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