What is T1 and E1? How many D and B channels do they have in case of ISDN?
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What are the various ways in which we can add users in CUCM?
What is the usage of osi physical layer?
What are gateways?
What is early media? Explain the call flow.
How will enable sound service in 2003?
What is the use of a default gateway?
What is Mobile Voice Access and Unified mobility?
How vpn is used in the corporate world?
How proxy servers are protect computer networks?
What do you understand by ping command?
What is client/server?
What is line group in CUCM?