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Test your basic knowledge |
CCIE Voice Test
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccie
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. When a CUCM device dials a number - what happens?
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
It matches a route pattern| Which points to a route list| Which point to a route group| Which contains a GW or Trunk|*Then it needs to match on an incoming VOIP diap-peer (incoming called -number .)
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
2. Where is it best to manipulate digits for inbound calls?
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3. What CM Service needs to be start in Serviceability for MOH to work?
Bandwidth
IP Voice Media Streaming App
Put them in a route list.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
4. Which takes precedence Device Locations or Device Pool Locations?
Sh ccm-manager
Device Pool Locations
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</i>
At the CLI: <i>utils ntp status</i>
5. What commands are needed to configure the voice register pool in CME?
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Reroute when there is a WAN Outage.
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi
6. How do you allow the Calling Name to be sent to the PSTN on a router?
Put them in a route list.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Bottom up - to prevent glare.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
7. How do you prevent toll fraud on CUCM?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#int lo0|#h323-gateway voip bind srcaddr [IP]||#isdn switch-type primary-ni|#network-clock-particpate wic0||#controller t1 0/0/0|#pri-group timeslots 1-3||#int serial 0/0/0:23|#isdn outgoing display-ie|#isdn b-chan selection order [use opposite of wh
Mobile Connect
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
8. What types of digit manipulation can you perform at the route pattern?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
TRUE
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
9. Describe how you configure SIP URI functionality.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Outbound dial-peers
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
10. What does the <i>Transfer On-hook Enabled</i> Service Parameter do?
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
IP Voice Media Streaming App
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
Allows you to transfer by only pressing the Transfer button once.
11. What are the steps to integrate CUPS with CUCM?
On CUCM -- UPTSAL||Create Your <b>Users</b>|<b>Phone</b> - set owner id|Create SIP <b>Trunk</b>|<b>SIP Trunk Security Profile|</b>|<b>Application Server</b>|<b>Licensing|</b>|||On CUPS||Work Left to right
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</i>
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
12. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
Int vlan 130|ip address 10.10.101.1 255.255.255.0|int vlan 240|ip address 10.10.201.1 255.255.255.0
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
13. How do you verify that NTP is working on the CUCM server?
Higher
Assign SIP Dial Rules
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
At the CLI: <i>utils ntp status</i>
14. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
<i>SIP Route Pattern</i> over a SIP Trunk.
15. What are the commands to configure SIP phones in CME?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool
<i>Proxy Line Mode</i> has multiple icons on the phone.|<i>Shared Line Mode</i> has only one.
16. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP
17. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
On CUCM -- UPTSAL||Create Your <b>Users</b>|<b>Phone</b> - set owner id|Create SIP <b>Trunk</b>|<b>SIP Trunk Security Profile|</b>|<b>Application Server</b>|<b>Licensing|</b>|||On CUPS||Work Left to right
18. How do you configure phone ports on an ESW?
...
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
Sends the Calling Name.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
19. What are the commands to configure a SIP phone in CUCME?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
<i>Auto Call Pickup Enabled</i>
20. How do you set up redundancy on outbound dial-peers on an H323 gateway?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
8kb/s
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin
21. What are the commands to set up the PRI?
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22. How do you configure SRST?
At the CLI: <i>utils ntp status</i>
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Reroute when there is a WAN Outage.
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
23. What does Display-IE do?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
Sends the Calling Name.
1 ... this is not optional!
24. On an H323 GW - how do you adjust the timers for redundancy hunting?
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
25. How do you configure an MGCP GW? (router side)
<i>Proxy Line Mode</i> has multiple icons on the phone.|<i>Shared Line Mode</i> has only one.
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
(config)#<i>sh cdp neigh detail
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
26. '<b>By Nov. 16 - 2010</b>||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
Matches any length dialed number and truncates it to 4 digits.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a <i>voice class h323</i>and set the <i>h225 timeout</i> value so it will hunt between the two.
...
27. How do you prevent toll fraud on CME?
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| #voice-class h323 1| #session target ipv4:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
On CUCM it's identical to adding an H323 GW.
Transfer to external is blocked by default.|To ensure only transfer to internal is allowed - make sure only the following tx pattern is under telephony-service||#telephony service| #transfer-pattern ....
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
28. How is NTP sych setup in CUCM?
(config)#<i>sh cdp neigh detail
Outbound dial-peers
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
CUCM OS Administration Settings --> NTP Servers
29. 'If you want to make changes to any softkeys where do you do it?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Single Number Reach (Mobile Connect)
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
30. Is the + character supported on a VOIP dial-peer?
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31. In Gatekeeper CAC how do you restrict a specific endpoint?
Mobile Connect
Sh ip rsvp reservation||sh sccp connections
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
32. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.
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33. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
In CUCM - configure CFUR to point to it's E164 number.
Allows you to transfer by only pressing the Transfer button once.
On CUCM -- UPTSAL||Create Your <b>Users</b>|<b>Phone</b> - set owner id|Create SIP <b>Trunk</b>|<b>SIP Trunk Security Profile|</b>|<b>Application Server</b>|<b>Licensing|</b>|||On CUPS||Work Left to right
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
34. Where do you use VIA zone?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
35. What should you configure before entering auto qos?
CUCM OS Administration Settings --> NTP Servers
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Bandwidth
36. What is a best practice for digit manipulation - in regards to H323 GWs?
Single Number Reach (Mobile Connect)
(config)#voice register dialplan
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
37. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
Find the GUI Files - show flash | i .html|<i>ip http server</i>|<i>ip http path flash:/<PATH TO FILES></i>||telephony service|web admin system name admin pass cisco|dn-webedit
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
38. What are the basic SCCP Commands fro telephony-service in CUCME?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
At the CLI: <i>utils ntp status</i>
39. Privacy is enabled system-wide in CUCM by default. (T or F)
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
Assign SIP Dial Rules
TRUE
40. How do you enable AAR system wide?
Dial-peers
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
Device Pool Locations
41. What are the 3 mandatory commands within call-manager-fallback?
Max-dn|max-ephone|ip source-address
<i>#after-hours block pattern</i>
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
The Called/Calling Transformations are superceded.
42. What are the commands to configure SRST in fallback?
<i>Auto Call Pickup Enabled</i>
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
43. How do you change modes in <i>voice register global</i>?
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
IP Voice Media Streaming App
44. What are the commands to manually configure an MGCP gateway?
#isdn switch-type primary-ni|#network-clock-participate wic 0|#controller t1 0/0/0|#pri-group timeslots 1-3 service mgcp||#ccm-manager mgcp ccm-manager redundant-host [IP]|#ccm-manager fallback-mgcp (for srst)|#ccm-manager moh||#mgcp|#mgcp call-agent
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
45. If you can't use a tech-prefix or default tech-prefix how do you get around the fact that CUCM does not register it's endpoint to GK?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Use the <i>alias static</i> configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
46. When configuring a Gatekeep-controlled trunk - what do you do with the <i>Wait for Far End H.245 TCS</i> option?
(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Sh ccm-manager
47. When do you use translate called? Translate calling?
Sh ip rsvp reservation||sh sccp connections
CUCM OS Administration Settings --> NTP Servers
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
48. What are the commands to create the L3 routing interface for VLANS (SVI)?
Int vlan 130|ip address 10.10.101.1 255.255.255.0|int vlan 240|ip address 10.10.201.1 255.255.255.0
Sh ip rsvp reservation||sh sccp connections
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Bandwidth
49. What do you need to do to activate the CME GUI?
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
Find the GUI Files - show flash | i .html|<i>ip http server</i>|<i>ip http path flash:/<PATH TO FILES></i>||telephony service|web admin system name admin pass cisco|dn-webedit
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
It's best to strip digits at the voice port.
50. How do you disable KPML?
Outbound dial-peers
The <i>name</i> configuration field in ephone-dn and voice register dn
<i>voice register pool</i>|and|<i>voice register dn</i>
Assign SIP Dial Rules