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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 are the commands to configure NTP in IOS?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
The name configuration field in ephone-dn and voice register dn
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

2. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Configure it on the route group through the route list - then it will be local to the route list.
#test voice translation rule 1 <input to test>

3. How do you place SCCP and SIP phones into a single huntgroup?
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
Ccm-manager music-on-hold
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Via the voice hunt-group parallel command

4. How do you configure phone ports on a 3750?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Max-dn|max-ephone|ip source-address
Service Parameters --> Mobile Voice Access Number
Debug ephone moh

5. How do you enable Extension Mobility for a device in CME?
Debug ephone moh
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
Assign a logout-profile to the ephone.
(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

6. How do you prioritize route groups?
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Put them in a route list.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

7. What's the difference between AAR and SRST?
Precede the # with a > ... so 9011*>#
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

...

8. What are the commands to create vlans on an ESW?
The name configuration field in ephone-dn and voice register dn
Service Parameter --> Block OffNet To OffNet Transfer --> True
In CUCM - configure CFUR to point to it's E164 number.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

9. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?

CUCM - Partitions and Calling Search Spaces||CME - COR Lists
In the CUCM 7.0.1 Release Notes ... search for restore.
SIP Dial Rules

10. When a CUCM device dials a number - what happens?
Re-enter the mgcp bind control and mgcp bind media commands.
...
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 .)
The Called/Calling Transformations are superceded.

11. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
Sh ip rsvp reservation||sh sccp connections
#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
Re-enter the mgcp bind control and mgcp bind media commands.

12. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

'Service Parameters --> Auto Answer Timer
...

13. How do you block an external call from being transferred back out to the pstn by an internal user?
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 ....
Service Parameter --> Block OffNet To OffNet Transfer --> True
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Service Parameters --> Mobile Voice Access Number

14. SNR is also known as?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
It's best to strip digits at the voice port.
Mobile Connect

15. Privacy is enabled system-wide in CUCM by default. (T or F)
Top Down means that channel 1 will be the first channel used to place outgoing calls.
sh ephone reg|and|debug voip dialpeer
TRUE
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

16. How do you configure CUCM redundancy on an H323 gateway?
#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
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
IP Voice Media Streaming App
Phone number followed by domain name.|i.e. 3006@ipxcme.com

17. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Service Parameter --> Block OffNet To OffNet Transfer --> 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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

18. How do you configure CUBE?

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19. How do you set the Call Park Reversion Timer?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Dial-peers
CUCM Service Parameters --> Call Park Reversion Timer
On CUCM it's identical to adding an H323 GW.

20. What are the commands to create the L3 routing interface for VLANS (SVI)?
Reroute when there is a WAN Outage.
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
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
...

21. What are the base telephony-service commands for CME?
Re-enter the mgcp bind control and mgcp bind media commands.
It's best to strip digits at the voice port.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

22. 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?
(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
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)
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.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

23. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Dial-peers
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

24. How do you see multicast packets being sent?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#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
Debug ephone moh

25. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SIP Route Pattern over a SIP Trunk.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

26. How do you configure a gateway to register with gatekeeper?
The name configuration field in ephone-dn and voice register dn
#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
Master/Slave relationship. CUCM controls it.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

27. How do you ensure that G.711 only is used?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

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

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29. What's the best way to do digit manipulation on an IOS gateway?
#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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
voice translation-profile|and|voice translation-rule
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 configure a SIP Trunk? (router side)
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
SERVICE PARAMETER> Automated Alternate Routing Enable > True

31. How do you test a Voice Translation Rule?
#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
#test voice translation rule 1 <input to test>
The name configuration field in ephone-dn and voice register dn
'Use before the ... so XXXX

32. 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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
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

33. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
IP Voice Media Streaming App
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Reroute when here is WAN congestion.
In the CUCM 7.0.1 Release Notes ... search for restore.

34. If you're using Called/Calling Party Transformations at the Route Pattern and tranformations at the route list ... What does the RP affect and What does the RL affect?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Service Parameters --> Mobile Voice Access Number

35. How do you use an ephone template?
Apply it to the ephone.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Bottom up - to prevent glare.

36. How do you enable AAR?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

37. What are two caveats to using the ccm-manager config server</ip> command?
On CUCM it's identical to adding an H323 GW.
#voice service voip| #no supplementary-service h225-notify cid-update
(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

38. '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.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Show ccm-manager
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

39. How do you prevent H323 caller-id updates to CUCM
Precede the # with a > ... so 9011*>#
voice translation-profile|and|voice translation-rule
#voice service voip| #no supplementary-service h225-notify cid-update
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

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

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41. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
SIP Dial Rules
The Called/Calling Transformations are superceded.
Service Parameters --> Mobile Voice Access Number
Put them in a route list.

42. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Sends the Calling Name.
SIP Dial Rules
Ccm-manager music-on-hold
(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

43. How do you allow H323 calls to be preserved should the primary H323 GW fail?
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Outbound dial-peers

44. On the RDP What is the CSS used for?
Mobile Voice Access
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
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)
On CUCM it's identical to adding an H323 GW.

45. What kind of relationship does an MGCP gateway have with CUCM?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Allows you to transfer by only pressing the Transfer button once.
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.
Master/Slave relationship. CUCM controls it.

46. On the RDP What is the Rerouting CSS used for?
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
Dial-peers
Single Number Reach (Mobile Connect)
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

47. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
Single Number Reach (Mobile Connect)
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

48. Maximum Wait Time for Desk Pickup?
Mobile Voice Access
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 .)
Reroute when here is WAN congestion.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

49. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Automatically configures the MGCP GW for you.
Mobile Connect

50. What are the commands to configure SRST in fallback?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
CUCM Service Parameters --> Call Park Reversion Timer
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
At the CLI: utils ntp status