lesson 3

Question 1

cisco on premises call control

Answer 1

• unified communications manager express (cme)
• unified communications managers (cucm)
• business edition 6000/7000 (cbe)
• webex calling (cloud phone system)

Question 2

cisco unified communications applications

Answer 2

• cisco jabber

- cisco unity connection (cuc)

Question 3

cme

Answer 3

• cisco unified communications manager express
• midmarket call control product
• runs on integrated services router (isr)

Question 4

cme functions

Answer 4

• call processing
• dial plan administration
• phone feature administration
• directory services
• gateway features and modules

Question 5

cme isr supports

Answer 5

• 50 to 450 endpoints
• voicemail via cisco unity express (cue)
• fxo and fxs modules for analog pstn
• dsp via pvdm
• programmed via cli

Question 6

cucm

Answer 6

• cisco unified communications manager
• scalable up to 40,000 users per cluster
• multi-server design for redundancy

Question 7

cucm redundancy

Answer 7

-2:1 redundancy scheme, 2 active 1 backup, cost efficient redundancy, degraded service during upgrades
-1:1 redundancy scheme, 2 active 2 backup, high availability during upgrades, simplified configurations
-

Question 8

voip network requirements

Answer 8

• poe
• cdp/lldp/voice vlan
• dhcp server
• tftp server
• ntp server

Question 9

cisco ip phone power methods

Answer 9

• poe
• midspan power injection
• wall power

Question 10

voice dhcp pool requirements

Answer 10

• network
• mask
• default router
• dns server
• option 150 tftp server ip
• ip helper addresses

Question 11

cisco ip phone startup process

Answer 11

1. obtains poe from switch
2. learns and provides vlan info to phone using cdp/lldp
3. requests dhcp addressing
4. receives dhcp addressing
5. downloads device configuration file
6. device registers with gatekeeper
7. gatekeeper sends sip message 200 ok