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CCIE Voice Test

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. 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
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Bandwidth
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

2. Name 4 useful show commands for active calls.
Re-enter the mgcp bind control and mgcp bind media commands.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

3. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Dtmf-relay h245-alpha
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

4. How much bandwidth does a G.729 call including layer 3 require?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Single Number Reach (Mobile Connect)
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
24kb/s

5. What are the base telephony-service commands for CME?
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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

6. When do you use translate called? Translate calling?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
When configuring TEHO.

7. What terminology translates to SRST?
Precede the # with a > ... so 9011*>#
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
Reroute when there is a WAN Outage.
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

8. What would force you to use telephony-service to configure SRST?
#voice service voip| #no supplementary-service h225-notify cid-update
Matches any length dialed number and truncates it to 4 digits.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Ccm-manager music-on-hold

9. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Apply voice-class codec
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
CUCM Service Parameters --> Call Park Reversion Timer

10. What does KPML do?

Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Auto Call Pickup Enabled

11. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
'Service Parameters --> Auto Answer Timer
...
Top Down means that channel 1 will be the first channel used to place outgoing calls.
(config)#voice register dialplan

12. 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
Put them in a route list.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

13. On the RDP What is the Rerouting CSS used for?
Single Number Reach (Mobile Connect)
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Mobile Voice Access
Re-enter the mgcp bind control and mgcp bind media commands.

14. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Re-enter the mgcp bind control and mgcp bind media commands.
The Called/Calling Transformations are superceded.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Auto Call Pickup Enabled

15. What dtmf-relay type do you use for an H323 GW?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
TRUE
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
Dtmf-relay h245-alpha

16. How do you support multiple codecs on a dialpeer?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
...
Apply voice-class codec
At the CLI: utils ntp status

17. What is CSIM?
sh ephone reg|and|debug voip dialpeer
Call Simulator. You can use to validate path from router to the PSTN.
On CUCM it's identical to adding an H323 GW.
'Service Parameters --> Auto Answer Timer

18. How would you enable security on a GK?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

19. Is the + character supported on a VOIP dial-peer?

20. How do you setup AutoRegistration in CUCM?
The name configuration field in ephone-dn and voice register dn
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

21. What terminology translates to AAR?
Reroute when here is WAN congestion.
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Device Pool Locations

22. What are the commands to configure a SIP phone in CUCME?
CUCM OS Administration Settings --> NTP Servers
The Called/Calling Transformations are superceded.
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
Call forwarding between voip to voip (when CUBE is in play)

23. By Nov. 16 - 2010||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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
...

24. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
...
#test voice translation rule 1 <input to test>
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a voice class h323and set the h225 timeout value so it will hunt between the two.

25. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
TRUE
Matches any length dialed number and truncates it to 4 digits.

26. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
Higher
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
...

27. Describe the relationship between route patterns and end devices.
Bottom up - to prevent glare.
TRUE
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.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

28. What do you need to do to activate the CME GUI?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
#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
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1
Reroute when there is a WAN Outage.

29. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
(config)#voice register dialplan
#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

30. What are the basic ephone-dn and ephone commands?
'Service Parameters --> Auto Answer Timer
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
(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
CUCM OS Administration Settings --> NTP Servers

31. What are the 3 mandatory commands within call-manager-fallback?
Max-dn|max-ephone|ip source-address
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
On CUCM it's identical to adding an H323 GW.
Mobile Connect

32. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
(config)#voice register dialplan
#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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0

33. 'By Nov. 16 - 2010||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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
...
#test voice translation rule 1 <input to test>
#after-hours block pattern

34. 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?
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Reroute when there is a WAN Outage.
#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
TRUE

35. What are the steps to configure Single Number Reach and Mobile Voice Access?

Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
It's best to strip digits at the voice port.
Sends the Calling Name.

36. What should you configure before entering auto qos?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Put them in a route list.
Bandwidth

37. How do you configure DHCP in IOS?
voice register pool|and|voice register dn
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
(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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

38. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
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
In the CUCM 7.0.1 Release Notes ... search for restore.
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.
SIP Dial Rules

39. Which takes precedence Device Locations or Device Pool Locations?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
To enable two-stage dialing.
Device Pool Locations
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

40. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Higher

41. What are the commands to configure SRST in fallback?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
(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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

42. How do you prevent toll fraud on CUCM?
The Called/Calling Transformations are superceded.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
SIP Route Pattern over a SIP Trunk.
24kb/s

43. 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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Re-enter the mgcp bind control and mgcp bind media commands.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

44. How do you create a trunk on the switch side?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
Call forwarding between voip to voip (when CUBE is in play)

45. How do you see multicast packets being sent?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
...
Debug ephone moh
'Service Parameters --> Auto Answer Timer

46. How do you prioritize route groups?
sh ephone reg|and|debug voip dialpeer
Precede the # with a > ... so 9011*>#
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Put them in a route list.

47. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

48. Describe how you configure SIP URI functionality.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
SIP Dial Rules

Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

49. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
Single Number Reach (Mobile Connect)
voice register pool|and|voice register dn
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0

50. When can you not use a Standard Local Route Group?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
When configuring TEHO.