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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. 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.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
SERVICE PARAMETER> Automated Alternate Routing Enable > True
(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

2. How do you configure AAR?
Sends the Calling Name.
sh ephone reg|and|debug voip dialpeer
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Debug isdn q931

3. What is call-forward pattern used for?
The Called/Calling Transformations are superceded.
Call forwarding between voip to voip (when CUBE is in play)
Assign a logout-profile to the ephone.
...

4. On the RDP What is the Rerouting CSS used for?
voice translation-profile|and|voice translation-rule
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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Single Number Reach (Mobile Connect)

5. On the RDP What is the CSS used for?
(config)#voice register dialplan
Mobile Voice Access
Sh ccm-manager
'Service Parameters --> Auto Answer Timer

6. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
The Called/Calling Transformations are superceded.

7. How do you configure phone ports on an ESW?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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
To enable two-stage dialing.
Higher

8. What does rule 1 /^.*(....$)/ /1/ do?
...
Matches any length dialed number and truncates it to 4 digits.
...
'Use before the ... so XXXX

9. How do you block an external call from being transferred back out to the pstn by an internal user?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Call Simulator. You can use to validate path from router to the PSTN.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Service Parameter --> Block OffNet To OffNet Transfer --> True

10. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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.

11. In Gatekeeper CAC how do you restrict a specific endpoint?
Master/Slave relationship. CUCM controls it.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
In the CUCM 7.0.1 Release Notes ... search for restore.
Service Parameters --> Mobile Voice Access Number

12. 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

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-manager-fallback or telephony-service mode SRST

13. What are the commands to manually configure an MGCP gateway?
In the CUCM 7.0.1 Release Notes ... search for restore.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
#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
TRUE

14. What's the best way to perform digit manipulation on a route group?
The name configuration field in ephone-dn and voice register dn
Configure it on the route group through the route list - then it will be local to the route list.
Master/Slave relationship. CUCM controls it.
Re-enter the mgcp bind control and mgcp bind media commands.

15. With the gw-priority command - does higher or lower priority take precedence?
Higher
IP Voice Media Streaming App
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

16. How do you set up redundancy on outbound dial-peers on an H323 gateway?

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 ....
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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

17. What is the bit rate for a G.729 call excluding layer 2?
(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 Parameters --> Auto Answer Timer
8kb/s
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.

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

19. How do you support multiple codecs on a dialpeer?

Mobile Voice Access
Apply voice-class codec
Apply it to the ephone.

20. 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?
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
(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

21. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
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
voice register pool|and|voice register dn
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
Outbound dial-peers

22. What does an H323 GW require that MGCP GWs do not?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Dial-peers
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.

23. What are the base telephony-service commands for CME?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Auto Call Pickup Enabled
Sh ip rsvp reservation||sh sccp connections
When multiple sites use the same route pattern - do your digit manipulation on a route list.

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

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25. What terminology translates to SRST?
Call-manager-fallback or telephony-service mode SRST
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
(config)#voice register dialplan
Reroute when there is a WAN Outage.

26. What is the Enable Enterprise Feature Access Service Parameter used for?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
To enable two-stage dialing.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

27. How would you verify that DHCP is working in IOS?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Reroute when here is WAN congestion.
(config)#sh cdp neigh detail
TRUE

28. 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)#sh cdp neigh detail
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
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 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

29. How do you configure DHCP in IOS?
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)#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 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
voice register pool|and|voice register dn

30. How do you configure CUCM redundancy on an H323 gateway?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Outbound dial-peers
Device Pool Locations
#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

31. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Reroute when here is WAN congestion.
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.
SIP Route Pattern over a SIP Trunk.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

32. When setting up SIP URI where do you configure the CUCM's domain name?'
When configuring TEHO.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(config)#sh cdp neigh detail

33. Where do you use VIA zone?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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
Bottom up - to prevent glare.

34. SNR is also known as?
Reroute when here is WAN congestion.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Mobile Connect
Bandwidth

35. How do you prevent H323 caller-id updates to CUCM
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

#voice service voip| #no supplementary-service h225-notify cid-update
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 .)

36. When a CUCM device dials a number - what happens?
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 .)
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

37. Where is it best to manipulate digits for inbound calls?

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38. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
At the CLI: utils ntp status
The Called/Calling Transformations are superceded.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

39. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
#voice service voip| #no supplementary-service h225-notify cid-update

40. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
Show ccm-manager
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

41. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Bottom up - to prevent glare.
Re-enter the mgcp bind control and mgcp bind media commands.
Master/Slave relationship. CUCM controls it.
Outbound dial-peers

42. What does KPML do?
voice translation-profile|and|voice translation-rule
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Bandwidth

43. What are the commands to configure SIP phones in CME?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

Assign SIP Dial Rules
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

44. How do you configure a gateway to register with gatekeeper?
Via the voice hunt-group parallel command
(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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#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

45. An MGCP gateway serving as an SRST router requires what?
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
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
(config)#voice register dialplan

46. What are the commands to configure 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.
Precede the # with a > ... so 9011*>#
#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
(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

47. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Debug isdn q931
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

48. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Single Number Reach (Mobile Connect)
#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

49. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Debug isdn q931
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Apply voice-class codec

50. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SIP Route Pattern over a SIP Trunk.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False