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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. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
#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
Service Parameters --> Mobile Voice Access Number
Master/Slave relationship. CUCM controls it.
Matches any length dialed number and truncates it to 4 digits.

2. How do you enable AAR system wide?
CUCM Service Parameters --> Call Park Reversion Timer
Service Parameter --> Block OffNet To OffNet Transfer --> True
Apply voice-class codec
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

3. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
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)#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
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)
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

4. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Mobile Connect
Sh ccm-manager
TRUE
Re-enter the mgcp bind control and mgcp bind media commands.

5. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Sh ip rsvp reservation||sh sccp connections
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
#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

6. How much bandwidth does a G.729 call including layer 3 require?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Show ccm-manager
Apply it to the ephone.
24kb/s

7. What are the commands to configure a T1/E1 PRI?
(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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Assign a logout-profile to the ephone.
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

8. When do you do digit manipulation at the route pattern as opposed to the route list?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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 it to the ephone.
To notify SIP Phones of NTP

9. What are the commands to manually configure an MGCP gateway?
'Service Parameters --> Auto Answer Timer
#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
(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
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

10. How do you prioritize route groups?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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
Put them in a route list.
Mobile Connect

11. How is NTP sych setup in CUCM?
CUCM OS Administration Settings --> NTP Servers
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

12. What are the steps to configure Single Number Reach and Mobile Voice Access?
...
The name configuration field in ephone-dn and voice register dn

Debug isdn q931

13. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Show ccm-manager
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

14. What are the steps to integrate CUPS with CUCM?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Dtmf-relay h245-alpha
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

15. What dtmf-relay type do you use for an H323 GW?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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.
#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
Dtmf-relay h245-alpha

16. What are the commands to configure NTP in IOS?
Show ccm-manager
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.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

17. Describe how you configure SIP URI functionality.

'Use before the ... so XXXX
CUCM Service Parameters --> Call Park Reversion Timer
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

18. What's the best way to perform digit manipulation on a route group?

Configure it on the route group through the route list - then it will be local to the route list.
Bottom up - to prevent glare.
Bandwidth

19. What are the commands to set up the PRI?

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20. When a CUCM device dials a number - what happens?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
voice register pool|and|voice register dn
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 .)
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

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

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22. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
When they are explicitly matched in a destination-pattern in a dial-peer.
Higher

23. Name 4 useful show commands for active calls.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Master/Slave relationship. CUCM controls it.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

24. Is the order of the MRGs in an MRGL significant?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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
Assign SIP Dial Rules

25. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
SIP Route Pattern over a SIP Trunk.
Assign SIP Dial Rules
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

26. '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
(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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Via the voice hunt-group parallel command
...

27. What are the 3 mandatory commands within call-manager-fallback?
Outbound dial-peers
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Max-dn|max-ephone|ip source-address
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

28. How do you configure class of service (CoS) in CUCM? CME?
#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
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
#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

29. How do you configure SRST?
Sends the Calling Name.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

Call-manager-fallback or telephony-service mode SRST

30. 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)
IP Voice Media Streaming App
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Sh ip rsvp reservation||sh sccp connections

31. How do you enable AAR?
Higher
Debug ephone moh
SERVICE PARAMETER> Automated Alternate Routing Enable > True
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

32. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Single Number Reach (Mobile Connect)

33. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
Allows you to transfer by only pressing the Transfer button once.
Single Number Reach (Mobile Connect)
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

34. How do you see multicast packets being sent?
At the CLI: utils ntp status
Debug ephone moh
SIP Dial Rules
(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

35. How do you verify that NTP is working on the CUCM server?
At the CLI: utils ntp status
TRUE
24kb/s
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

36. What is the Service Parameter to allow the phone that is picking ip to auto answer?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Auto Call Pickup Enabled
(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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

37. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Apply voice-class codec
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

38. How do you configure CUCM redundancy on an H323 gateway?
On CUCM it's identical to adding an H323 GW.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
When they are explicitly matched in a destination-pattern in a dial-peer.
#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

39. What are the basic ephone-dn and ephone commands?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Dial-peers
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
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

40. How do you allow H323 calls to be preserved should the primary H323 GW fail?
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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Top Down means that channel 1 will be the first channel used to place outgoing calls.

41. In CME Where is the Calling Name derived from?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Configure it on the route group through the route list - then it will be local to the route list.
The name configuration field in ephone-dn and voice register dn

42. How do you configure CUBE?

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43. Two useful troubleshooting commands for CUCME?
TRUE
sh ephone reg|and|debug voip dialpeer
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
In CUCM - configure CFUR to point to it's E164 number.

44. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
#after-hours block pattern
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 .)
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

45. 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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
CUCM Service Parameters --> Call Park Reversion Timer

46. When using drop-through-option What is the max number of huntgroups?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
1 ... this is not optional!
Device Pool Locations

47. What would force you to use telephony-service to configure SRST?
The Called/Calling Transformations are superceded.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Precede the # with a > ... so 9011*>#
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

48. 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.
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Put them in a route list.

49. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
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
voice translation-profile|and|voice translation-rule
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
The Called/Calling Transformations are superceded.

50. How do you block calls under call-manager-fallback?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#after-hours block pattern
sh ephone reg|and|debug voip dialpeer
Top Down means that channel 1 will be the first channel used to place outgoing calls.