Newbie: configuring T1 - help needed

[grzegorzniecka]

Dear all,

now I have telephony line: ISDN PRA (30B+D) and PSTN gateway is AVAYA.

Now, instead AVAYA I want to connect telephony line to Cisco 2921 with voice card:

1 Channelized (E1 or T1)/PRI port

How can I start to configure cisco as pstn gateway?

Regards

[abarkalg]

Hi ,

        You can follow the link below.

http://www.cisco.com/en/US/docs/ios/12_0/dial/configuration/guide/dcchant.html

here is an example with are few commands that you need to configure.

R1(config)# isdn switch-type     (this is global command to specify switch type)

R1(config)#controller t1 3/1    (Specify a T1 controller on a Cisco router with slot-3 here and port -1 here )

R1(config-controller)#framing esf   (Define the framing characteristics as Extended Superframe Format -ESF)

R1(config-controller)#linecode b8zs  (Define the line code as binary 8 zero substitution (B8ZS) )

R1(config-controller)#pri-group timeslots 1-3 service mgcp  (Configure ISDN PRI.)

R1(config-controller)#no shut

R1(config-controller)#exit

R1(config)#isdn switch-type         ( ni is fot T1 and net5 is for E1)

R1(config)#int s3/1:23     (Specify D channel on the serial interface for channelized T1)

R1(config-if)#isdn bind-l3 ccm-manager  (Bind it with call manager )

R1(config-if)#isdn outgoing display-ie

R1(config-if)#exit

Please rate helpful posts!!!

Regards,

Abdul

[paolo bevilacqua]

You answer above assumes that one has to use MGCP.

That is not a correct assumption, in  most cases using H.323 or SIP would bring better results.

[ronpatel]

Hi

1st you have to decide which protocol you want to use for the regestration/Integration.

If you decide MGCP

http://www.cisco.com/en/US/tech/tk1077/technologies_configuration_example09186a00801ad22f.shtml

If you decide SIP or H323

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094636.shtml

Also do not forget to use "network-clock-participate " command.

Regards

Ronak Patel