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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. How do you configure AAR?
Via the voice hunt-group parallel command
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

2. SNR is also known as?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
When configuring TEHO.
Mobile Connect
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

3. What would force you to use telephony-service to configure SRST?
Apply it to the ephone.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
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)
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

4. In CME Where is the Calling Name derived from?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
The name configuration field in ephone-dn and voice register dn
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

5. How do you configure class of service (CoS) in CUCM? CME?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Device Pool Locations
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

6. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

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7. How do you use an ephone template?
Dtmf-relay h245-alpha
(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
Apply it to the ephone.

8. Two useful troubleshooting commands for CUCME?
(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
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
sh ephone reg|and|debug voip dialpeer
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

9. What are the commands to create the L3 routing interface for VLANS (SVI)?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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

10. Describe how you configure SIP URI functionality.
Max-dn|max-ephone|ip source-address
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

SIP Route Pattern over a SIP Trunk.

11. What dtmf-relay type do you use for an H323 GW?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Dtmf-relay h245-alpha
24kb/s
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

12. How do you setup AutoRegistration in CUCM?
Re-enter the mgcp bind control and mgcp bind media commands.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Bottom up - to prevent glare.

13. What are the commands to configure a T1/E1 PRI?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
In CUCM - configure CFUR to point to it's E164 number.
(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
Service Parameter --> Block OffNet To OffNet Transfer --> True

14. How do you see multicast packets being sent?
Debug ephone moh
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Max-dn|max-ephone|ip source-address
To notify SIP Phones of NTP

15. How would you verify that DHCP is working in IOS?
(config)#voice register dialplan
(config)#sh cdp neigh detail
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

16. What does the Transfer On-hook Enabled Service Parameter do?

Allows you to transfer by only pressing the Transfer button once.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

17. Is the order of the MRGs in an MRGL significant?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

18. What are the 3 mandatory commands within call-manager-fallback?
Max-dn|max-ephone|ip source-address
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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

19. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Service Parameter --> Block OffNet To OffNet Transfer --> True
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In the CUCM 7.0.1 Release Notes ... search for restore.

20. How do you enable AAR?
(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

21. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
Via the voice hunt-group parallel command
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Dial-peers
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.

22. What commands are needed to configure the voice register pool in CME?
Sends the Calling Name.
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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

23. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

24. How would you set the the timer for Auto Answer?

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25. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
...
Sh ccm-manager
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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

26. Name 2 commands to verify RSVP functionality.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Re-enter the mgcp bind control and mgcp bind media commands.
Sh ip rsvp reservation||sh sccp connections

27. 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?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
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
(config)#voice register dialplan

28. What is the Service Parameter to allow the phone that is picking ip to auto answer?
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Auto Call Pickup Enabled

29. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Sends the Calling Name.
...
'Service Parameters --> Auto Answer Timer
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

30. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

Device Pool Locations
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

31. What does Display-IE do?
Sends the Calling Name.
Reroute when here is WAN congestion.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Via the voice hunt-group parallel command

32. How do you change modes in voice register global?
'Service Parameters --> Auto Answer Timer
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
SIP Route Pattern over a SIP Trunk.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

33. What does an H323 GW require that MGCP GWs do not?
1 ... this is not optional!
Dial-peers
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Service Parameter --> Block OffNet To OffNet Transfer --> True

34. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Mobile Voice Access

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

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36. 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
Bottom up - to prevent glare.
...
Phone number followed by domain name.|i.e. 3006@ipxcme.com
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

37. What is Mobile Voice Access?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

38. How do you create a trunk on the switch side?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
TRUE
Bandwidth
Re-enter the mgcp bind control and mgcp bind media commands.

39. What are the commands to configure a MGCP Gateway? (router)
Bandwidth
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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
#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

40. How do you enable AAR system wide?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Assign a logout-profile to the ephone.
voice translation-profile|and|voice translation-rule
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

41. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Auto Call Pickup Enabled
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.
It's best to strip digits at the voice port.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

42. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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
TRUE

43. When do you do digit manipulation at the route pattern as opposed to the route list?
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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#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
When multiple sites use the same route pattern - do your digit manipulation on a route list.

44. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
'Service Parameters --> Auto Answer Timer
(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
Bandwidth

45. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#sh cdp neigh detail
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

46. How do you ensure that G.711 only is used?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
On CUCM -- UPTSAL||Create Your Users|Phone - set owner id|Create SIP Trunk|SIP Trunk Security Profile||Application Server|Licensing||||On CUPS||Work Left to right
The name configuration field in ephone-dn and voice register dn
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

47. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
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
Re-enter the mgcp bind control and mgcp bind media commands.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

48. What is call-forward pattern used for?
Call forwarding between voip to voip (when CUBE is in play)
(config)#sh cdp neigh detail
Sends the Calling Name.
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

49. In Gatekeeper CAC how do you restrict a specific endpoint?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

50. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Configure it on the route group through the route list - then it will be local to the route list.
(config)#voice register dialplan
SIP Dial Rules