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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 types of digit manipulation can you perform at the route pattern?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Automatically configures the MGCP GW for you.

2. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
When configuring TEHO.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
...

3. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
#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

4. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Max-dn|max-ephone|ip source-address
Reroute when here is WAN congestion.

5. What CM Service needs to be start in Serviceability for MOH to work?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
At the CLI: utils ntp status
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
IP Voice Media Streaming App

6. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Show ccm-manager
It's best to strip digits at the voice port.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Ccm-manager music-on-hold

7. How do you configure SRST?
Call-manager-fallback or telephony-service mode SRST
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 milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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

8. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
(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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(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

9. How do you ensure that G.711 only is used?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

10. 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)

24kb/s
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

11. How do you configure phone ports on a 3750?
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
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
Debug isdn q931
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

12. What are the steps to configure Single Number Reach and Mobile Voice Access?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

13. How do you configure a gateway to register with gatekeeper?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Max-dn|max-ephone|ip source-address
#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

14. How do you prevent H323 caller-id updates to 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
When they are explicitly matched in a destination-pattern in a dial-peer.
#voice service voip| #no supplementary-service h225-notify cid-update
Single Number Reach (Mobile Connect)

15. How much bandwidth does a G.729 call including layer 3 require?
When they are explicitly matched in a destination-pattern in a dial-peer.

Need to Know||Anytime you have an external call - it needs to match on a route pattern.
24kb/s

16. How do you enable AAR system wide?
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Assign SIP Dial Rules
Bottom up - to prevent glare.

17. What are the steps to integrate CUPS with CUCM?
The name configuration field in ephone-dn and voice register dn
The Called/Calling Transformations are superceded.
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
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

18. 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?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
(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
Reroute when here is WAN congestion.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

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

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20. What is a best practice for digit manipulation - in regards to H323 GWs?
Outbound dial-peers
Push as much digit manipulation to the router as possible - so you can re-use it for 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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

21. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager
Master/Slave relationship. CUCM controls it.
Outbound dial-peers
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

22. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE

Debug ephone moh
Service Parameter --> Block OffNet To OffNet Transfer --> True

23. How do you get around relying on DNS for your CUCMs?
Mobile Voice Access
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

24. What are the basic ephone-dn and ephone commands?
CUCM Service Parameters --> Call Park Reversion 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
#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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

25. What kind of relationship does an MGCP gateway have with CUCM?
Precede the # with a > ... so 9011*>#
Re-enter the mgcp bind control and mgcp bind media commands.
Master/Slave relationship. CUCM controls it.
When configuring TEHO.

26. How do you set up redundancy on outbound dial-peers on an H323 gateway?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

27. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Call-manager-fallback or telephony-service mode SRST
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Service Parameters --> Mobile Voice Access Number
Outbound dial-peers

28. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Configure it on the route group through the route list - then it will be local to the route list.
(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

Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

29. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
Higher
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)
#voice service voip| #no supplementary-service h225-notify cid-update

30. How would you enable security on a GK?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Bottom up - to prevent glare.
1 ... this is not optional!

31. What is Mobile Voice Access?
Sh ccm-manager
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

32. What's the difference between AAR and SRST?
Outbound dial-peers
voice register pool|and|voice register dn
Put them in a route list.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

33. How do you configure CUCM redundancy on an H323 gateway?
Bandwidth
Reroute when there is a WAN Outage.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#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

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

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35. What are the commands to manually configure an MGCP gateway?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
#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
...

36. Does CUCM support RSVP natively?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
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 .)

37. Calls coming from CUCM to PSTN need what?
24kb/s
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Outbound dial-peers

38. How can you confirm the MGCP GW is registered to CUCM - in IOS?

CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Sh ccm-manager
Dial-peers

39. When setting up SIP URI where do you configure the CUCM's domain name?'
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
Re-enter the mgcp bind control and mgcp bind media commands.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
(config)#sh cdp neigh detail

40. When do you do digit manipulation at the route pattern as opposed to the route list?
(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
#after-hours block pattern
When multiple sites use the same route pattern - do your digit manipulation on a route list.
SIP Route Pattern over a SIP Trunk.

41. 'If you want to make changes to any softkeys where do you do it?
(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
Reroute when here is WAN congestion.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

42. How do you prevent toll fraud on CUCM?
#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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

43. How do you block calls under call-manager-fallback?
#after-hours block pattern
Ccm-manager music-on-hold
8kb/s
IP Voice Media Streaming App

44. Two useful troubleshooting commands for CUCME?
Matches any length dialed number and truncates it to 4 digits.
sh ephone reg|and|debug voip dialpeer
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Assign SIP Dial Rules

45. 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 restore.
8kb/s
Top Down means that channel 1 will be the first channel used to place outgoing calls.

46. What are the commands to configure SRST in fallback?
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.
Mobile Connect
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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

47. 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?
1 ... this is not optional!
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.
TRUE
Show ccm-manager

48. An MGCP gateway serving as an SRST router requires what?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
When configuring TEHO.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

49. How do do configure TEHO?
Max-dn|max-ephone|ip source-address
...
Sh ip rsvp reservation||sh sccp connections
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM

50. How would you verify that DHCP is working in IOS?
(config)#sh cdp neigh detail
When multiple sites use the same route pattern - do your digit manipulation on a route list.
SIP Dial Rules
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast