Using CLID Callback

- What is CLID Callback?

CLID stands for Calling Line Identification (i.e., calling parting number) which can be used by the ISDN CPE to call back without answering the call. The phone number used for calling back is captured from the D channel message. So, if your local ISDN switch is able to carry the calling party number, the Prestige can use this phone number to call back to the remote party.

There are two types of callback that the Prestige supports, they are the CLID callback and MS CBCP callback using Dial-Up Networking. Unlike the CLID callback, when using the MS CBCP callback the CPE must answer the first call to get the remote phone number from PPP CBCP negotiation and then call back to the remote party after hanging up the first call. In such a case, the remote party has to pay for the first phone call. While using the CLID callback, the remote party does not have to pay for the first call since the call is not answered. Therefore, you can not use Dial-Up Networking for the CLID callback since it does not support the CLID callback.

When calling back to a remote node the outgoing user information (username and password) are configured in menu 11.1, Remote Node Profile. While calling back to a dial-in user, the outgoing user information are configured in two fields in menu 13, O/G Login and O/G Password.

- Setup the Prestige for calling back to a remote node
- Setup the Prestige for calling back to a dial-in user

- Setup the Prestige for calling back to a remote node

Generally, there are several settings must be checked when using the CLID callback. They are:

- The 'CLID Authentication' setting in menu 13 must be configured as 'Required' or 'Preferred'.
- The 'Remote CLID' setting in menu 11.1 must be entered for the CLID authentication.
- The 'Callback' setting in menu 11.1 must be toggled to 'Yes'.
- The 'Outgoing user information' in menu 11.1 must be entered.
- The 'Outgoing Phone number' in menu 11.1 must be entered.

The following SMT only show the main settings of the CLID callback, you can refer to the user's manual or the support note for the other settings.

1. Toggle the 'CLID Authen' option in menu 13 to 'Required'.

`Menu 13 - Default Dial-in Setup` `Telco Options: IP Address Supplied By:` `CLID Authen= Required Dial-in User= Yes` `IP Pool= No` `PPP Options: IP Start Addr= N/A` `Recv Authen= CHAP/PAP IP Count(1,2)= N/A` `Compression= Yes` `Mutual Authen= No` `O/G Login= N/A Session Options:` `O/G Password= N/A Edit Filter Sets= No` `Multiple Link Options:` `Max Trans Rate(Kbps)= 128` `Callback Budget Management:` `Allocated Budget(min)=` `Period(hr)=` `Press ENTER to Confirm or ESC to Cancel:`

2. Create a remote node for a LAN-to-LAN connnection using the CLID callback.

`Menu 11.1 - Remote Node Profile` `Rem Node Name= LAN1 Edit PPP Options= No` `Active= Yes Rem IP Addr= 192.168.2.1` `Call Direction= Both Edit IP= No` `Incoming: Telco Option:` `Rem Login= test Transfer Type= 64K` `Rem Password= **** Allocated Budget(min)=` `Rem CLID= 20000 Period(hr)=` `Call Back= Yes Schedules=` `Outgoing: Nailed-Up Connection= N/A` `My Login= test Toll Period(sec)= 0` `My Password= **** Session Options:` `Authen= CHAP/PAP Edit Filter Sets= No` `Pri Phone #= 20000 Idle Timeout(sec)= 300` `Sec Phone #=` `Press ENTER to Confirm or ESC to Cancel:`

CLID Settings:

Option | Description
Rem CLID | Enter the remote phone number in this field which will be used for the CLID authentication. If this number does not match the one that the switch carries, the Prestige will drop the line due to the CLID authentication failure.
Call Back | Toggle to 'Yes' to turn on the callback function.
Outgoing: My Login | Enter the user name given by the remote node.
Outgoing: My Password | Enter the password given by the remote node.
Outgoing: Pri Phone # | Enter the phone number of the remote node for calling back.

- Setup the Prestige for calling back to a dial-in user

Generally, there are several settings must be checked when using the CLID callback. They are:

- The 'CLID Authentication' setting in menu 13 must be configured as 'Required' or 'Preferred'.
- The 'Outgoing user information' in menu 13 must be entered.
- The 'Callback' setting in menu 13 must be toggled to 'Mandatory'.
- The 'Callback Phone number' setting in menu 14.1 must be predefined in menu.
- The 'Remote CLID' setting in menu 14.1 must be entered for the CLID authentication.

The following SMT only show the main settings of the CLID callback, you can refer to the user's manual or the support note for the other settings.

1. Toggle the 'CLID Authen' option to 'Required' and enter the 'Outgoing user information' in menu 13..

`Menu 13 - Default Dial-in Setup` `Telco Options: IP Address Supplied By:` `CLID Authen= Required Dial-in User= Yes` `IP Pool= No` `PPP Options: IP Start Addr= N/A` `Recv Authen= CHAP/PAP IP Count(1,2)= N/A` `Compression= Yes` `Mutual Authen= No` `O/G Login= test Session Options:` `O/G Password= **** Edit Filter Sets= No` `Multiple Link Options:` `Max Trans Rate(Kbps)= 128` `Callback Budget Management:` `Allocated Budget(min)=` `Period(hr)=` `Press ENTER to Confirm or ESC to Cancel:`

CLID Settings:

Option | Description
CLID Authen | Toggle the 'CLID Authen' option in menu 13 to 'Required'.
O/G Login | Enter the user name given by the remote user for the authentication.
O/G Password | Enter the password given by the remote user for the authentication.

2. Create a dial-in user profile using the CLID callback.

`Menu 14.1 - Edit Dial-in User` `User Name= test` `Active= Yes` `Password= ********` `Callback= Mandatory` `Phone # Supplied by Caller= No` `Callback Phone #= 20000` `Rem CLID= 20000` `Idle Timeout= 300`

CLID Settings:

Option | Description
Call Back | Toggle to 'Mandatory' to turn on the callback function.
Callback Phone # | Enter the phone number of the remote user for calling back.
Rem CLID | Enter the remote phone number in this field which will be used for the CLID authentication. If this number does not match the one that the switch carries, the Prestige will drop the line due to the CLID authentication failure.

All contents copyright © 1999 ZyXEL Communications Corporation.