Which command is used in a Cisco IOS XE TDM gateway to configure the voice T1/E1 controller to provide clocking?

The correct answer is C. Clock source internal. In Cisco IOS XE, the T1/E1 controller clock source is configured under the controller interface. 'clock source internal' configures the controller to generate its own clock signal independently, making it the clock source (provider) rather than deriving timing from an external…

Voice Gateways and Session Border Controllers

Question

Options

AClock source network
BClock source line
CClock source internal
DCisco IOS XE TDM gateway T1/E1 controller cannot provide clocking.

How the community answered

(21 responses)

A
5% (1)
B
5% (1)
C
90% (19)

Explanation

In Cisco IOS XE, the T1/E1 controller clock source is configured under the controller interface. 'clock source internal' configures the controller to generate its own clock signal independently, making it the clock source (provider) rather than deriving timing from an external line. 'clock source line' is used when the controller should recover clocking from the incoming T1/E1 signal (i.e., it receives clocking, not provides it). 'clock source network' is not a valid IOS XE T1/E1 controller command. When you want the gateway itself to be the timing master and provide clocking to connected devices, 'clock source internal' is the correct command.

Topics

#Cisco IOS XE#TDM Gateway#T1/E1 clocking#Voice Gateway configuration

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