· Solution A: Use a central CallManager (perhaps redundant CallManagers) with each office being a separate region. Intra-region calls can be , but inter-region calls can be (unless to voice mail). Limit WAN bandwidth at each egress point and block calls that will exceed that level. · Solution B: Put a CallManager in each location and network them together using (running on a Cisco IOS gatekeeper). You can then use the zone bandwidth feature to limit the number of calls and force overflow to the Pub lic Switched Telephone Network (PSTN) | Cisco Design Essentials Cisco IP TelephonyEnterprise Voice Over Data Design Test 1 Cisco supports and is certified with the Lucent Octel 250 and 350 for CallManager . E T a. True b. False 2 How many bytes of padding would be in the payload of an ATM AAL5 cell containing 20 ms of voice a. 20 b. 28 K c. 44 d. 48 3 Consider this scenario. You have two branch offices using IP telephony with CallManager . To handle admissions control between the two offices over a WAN which of the following solutions will work Solution A Use a central CallManager perhaps redundant CallManagers with each office being a separate region. Intra-region calls can be but inter-region calls can be unless to voice mail Limit WAN bandwidth at each egress point and block calls that will exceed that level. Solution B Put a CallManager in each location and network them together using running on a Cisco IOS gatekeeper . You can then use the zone bandwidth feature to limit the number of calls and forc overflow to the Public Switched Telephone Network PSTN . a. Solution A b. Solution B c. Either A or B E 5 VAD E E E E E E L d. Neither A nor B 4 If the maximum acceptable delay that a low-speed link may add to your delay budget is 20 ms and the link speed is 64 kbps then the maximum fragment size should be bytes. a. 80 b. 140 c. 160 d. 320 is a mechanism for reducing bandwidth requirements when transporting a. Voice over IP b. Voice over Frame Relay c. Voice over ATM d. A B and C e. A and B f B and C g. A and C 6 Every minute of messages takes of space in the uOne message store. a. 250 kb K b. 750 kb c. 1 Mb d. Mb 7 The CallManager database uses to tie an actual IP Phone to a telephone number. a. Media Access Control MAC address b. Directory Number c. Line Appearance Number k d. IP Address 8 The low bit-rate coder requires less CPU power while maintaining high voice quality thus enabling support for two voice calls on a single DSP. a. b. K c. d.
