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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. 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
...
When configuring TEHO.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Call forwarding between voip to voip (when CUBE is in play)

2. How do you enable AAR system wide?
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
(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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

3. What is the full E164 format?
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
Mobile Voice Access
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

4. What are the basic ephone-dn and ephone commands?
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Apply it to the ephone.

5. Two useful troubleshooting commands for CUCME?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
The Called/Calling Transformations are superceded.
sh ephone reg|and|debug voip dialpeer
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

6. SNR is also known as?
(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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Mobile Connect

7. With the gw-priority command - does higher or lower priority take precedence?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Via the voice hunt-group parallel command
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Higher

8. How much bandwidth does a G.729 call including layer 3 require?
Outbound dial-peers
24kb/s
Configure it on the route group through the route list - then it will be local to the route list.
Phone number followed by domain name.|i.e. 3006@ipxcme.com

9. Calls coming from CUCM to PSTN need what?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Auto Call Pickup Enabled
sh ephone reg|and|debug voip dialpeer
Outbound dial-peers

10. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
sh ephone reg|and|debug voip dialpeer
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Auto Call Pickup Enabled

11. What do you need to do to activate the CME GUI?
sh ephone reg|and|debug voip dialpeer
Sends the Calling Name.
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

12. '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
24kb/s
Auto Call Pickup Enabled
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
...

13. Where do you use VIA zone?
...
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>|| Block Offnet to Offnet Transfer - Set to True
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

14. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Assign SIP Dial Rules
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Sh ccm-manager

15. What types of digit manipulation can you perform at the route pattern?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Sends the Calling Name.
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.

16. What does the Transfer On-hook Enabled Service Parameter do?
Dtmf-relay h245-alpha
Allows you to transfer by only pressing the Transfer button once.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
voice translation-profile|and|voice translation-rule

17. What are the commands to configure an H323 GW?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Configure it on the route group through the route list - then it will be local to the route list.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
#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

18. When are digits stripped in a gateway?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
#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

When they are explicitly matched in a destination-pattern in a dial-peer.

19. 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 os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
At the CLI: utils ntp status
#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
Sh ip rsvp reservation||sh sccp connections

20. 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.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
(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
Master/Slave relationship. CUCM controls it.

21. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Ccm-manager music-on-hold
SIP Dial Rules
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)
Bottom up - to prevent glare.

22. 'How do you inform a SIP phone of NTP information?
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
(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

23. What's the best way to do digit manipulation on an IOS gateway?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
voice translation-profile|and|voice translation-rule
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
TRUE

24. In CME Where is the Calling Name derived from?
Service Parameter --> Block OffNet To OffNet Transfer --> True
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Device Pool Locations
The name configuration field in ephone-dn and voice register dn

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.
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

Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

26. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
(config)#sh cdp neigh detail

27. What would force you to use telephony-service to configure SRST?
1 ... this is not optional!
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

28. How do you configure phone ports on a 3750?
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.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

29. When do you use translate called? Translate calling?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Outbound dial-peers
#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

30. What is Phone NTP Reference used for?
#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
(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
To notify SIP Phones of NTP
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

31. What kind of relationship does an MGCP gateway have with CUCM?
Assign a logout-profile to the ephone.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Master/Slave relationship. CUCM controls it.
Reroute when here is WAN congestion.

32. What does KPML do?
8kb/s
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Re-enter the mgcp bind control and mgcp bind media commands.

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

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34. 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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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
...

35. 'If you're not getting a DHCP address from CUCM what then?
Sh ip rsvp reservation||sh sccp connections
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

36. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
'Service Parameters --> Auto Answer Timer

37. What should you configure before entering auto qos?
Bandwidth
Master/Slave relationship. CUCM controls it.
#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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

38. How do you configure a SIP Trunk? (router side)
Apply voice-class codec
Debug ephone moh
(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
Max-dn|max-ephone|ip source-address

39. How do you create a trunk on the switch side?
Dial-peers
Assign SIP Dial Rules
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

40. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
(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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

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

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42. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Sends the Calling Name.

43. How do you see the details of calls coming in and out of the PRI?
Reroute when here is WAN congestion.
Call-manager-fallback or telephony-service mode SRST
SIP Dial Rules
Debug isdn q931

44. What dtmf-relay type do you use for an H323 GW?
#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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Dtmf-relay h245-alpha

45. What are the basic SCCP Commands fro telephony-service in CUCME?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
8kb/s
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Phone number followed by domain name.|i.e. 3006@ipxcme.com

46. What are the steps to configure Single Number Reach and Mobile Voice Access?
#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

Apply voice-class codec
CUCM OS Administration Settings --> NTP Servers

47. How would you enable security on a GK?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Sh ccm-manager
In the CUCM 7.0.1 Release Notes ... search for restore.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

48. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
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
Service Parameters --> Mobile Voice Access Number

49. Name 2 commands to verify RSVP functionality.
Higher
Sh ip rsvp reservation||sh sccp connections
Auto Call Pickup Enabled
Top Down means that channel 1 will be the first channel used to place outgoing calls.

50. 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?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Device Pool Locations