Follow the procedures described in the previous paragraphs, but replace the FRITZ modem
with the US Robotics analog modem.
Remote Access to the Analog Modem
When the analog modem is used, it is necessary to hold a DDI number in the public numbering
plan in order to be able to carry out remote maintenance.
In the case of no DDI number is available, the access to the modem will be possible only via
the operator transfer.
6.2.3.4.3 Operating Mode
1. Open OMC on the remote access PC.
2. Select the Expert menu.
3. Click Comm.
4. Select Connect. The Communication Path window is displayed.
5. Click Modem direct, then OK.
6. There are two ways of establishing a remote connection:
• Select a modem phone book entry in the Used Entry field of the Modem Connection
window.
• Click Dialing, select the modem to use ("used modem"), then dial the customer remote
access number in the Number field.
7. Enter the system's default password pbxk1064. It will take a few seconds for the
connection to be established.
6.2.3.4.4 Security
In the remote access, the protocol used in the "data link" OSI layer is PPP (Point-to-Point
Protocol). The TCP/IP protocols are used respectively in the "transport" and "network" layers.
For each layer, Alcatel-Lucent OmniPCX Office Communication Server carries out an access
control.
Authentication
At the start of the connection (PPP), an account name (system masked) and password
(pbxk1064) are required. This account name is automatically generated by OMC. The
password is required by OMC to establish a direct connection (LAN) with Alcatel-Lucent
OmniPCX Office Communication Server. Any other authentication will be rejected.
Firewall
If the system accepts the authentication, the PPP connection will be established, and all the
data packets received on this interface will be filtered according to the following rules:
All the packets are refused except:
- packets bound for Alcatel-Lucent OmniPCX Office Communication Server FTP server via
two TCP ports preset for the PBX configuration by OMC.
- control packets using the ICMP protocol (Internet Control Message Protocol).
6.2.3.5 Access With Proxy
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