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To implement toll fraud prevention on Cisco UCM, an administrator can use the following parameters:

Enable Forced Authorization Code 112211.

Set an authorization level of 3 for the route pattern 8005551212.

Require no access code to dial 10-digit numbers.

The route pattern must be implemented as follows:

Pattern = 1122113.8005551212

This will require users to enter the authorization code 112211 followed by the number 8005551212 to dial this number. The authorization level of 3 will prevent users from transferring calls to this number.

Cisco IP Phone 7800 Series devices support remote command-line access through SSH, but this access is disabled by default in Cisco Unified Communications Manager (CUCM). When an engineer is unable to reach the phone’s command line while the device is otherwise reachable via ICMP/HTTP and registered to CUCM, the most common cause is that SSH is not enabled or the required credentials have not been configured.

Within the Phone Configuration → Product Specific Configuration Layout, CUCM provides administrative controls for remote access capabilities. The “SSH Access” parameter in this menu explicitly controls whether the phone will accept SSH connections; this must be enabled for any CLI access to function. In addition, CUCM requires the configuration of SSH username and password under the Secure Shell Information section. These credentials are then provisioned to the phone through its configuration file. If SSH is enabled but no credentials are defined, the phone will reject the connection even if TCP/22 is open.

Other listed options (such as disabling Web Access, enabling Settings Access, or turning on FIPS mode) do not impact SSH functionality. Web Access controls HTTP/HTTPS availability, Settings Access controls local phone menu access, and FIPS mode enforces cryptographic compliance but does not enable SSH by itself.

Therefore, the two actions that resolve the issue are:

Enabling SSH Access in the Product Specific Configuration Layout

Configuring SSH username and password under Secure Shell Information

These steps ensure the phone downloads updated configuration files, activates SSH, and allows authenticated remote CLI access—fully aligned with Cisco’s standard operational behavior for 7800 Series endpoints.

The RTP port is used to send and receive media packets during a call. If the RTP port is set to 0, the called device will not be able to send or receive media packets, and the call will fail.

The other options are not correct because:

A. The calling device did not offer a ptime value: The ptime value is used to specify the amount of time between each media packet. If the calling device does not offer a ptime value, the called device will use the default value of 20 milliseconds.

B. The media stream is set to sendonly: The media stream is set to sendonly when the called device is only able to send media packets, and not receive them. This is not a problem, and the call will still succeed.

C. The payload for G.711ulaw must be 18: The payload for G.711ulaw is the type of media packet that is used. The payload must be set to 18 for G.711ulaw, but this is not a problem, and the call will still succeed.