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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. How do you verify where MOH is being served up from?

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2. What does KPML do?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

3. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

4. 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.
In CUCM - configure CFUR to point to it's E164 number.
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
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

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

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6. How do you configure a SIP Trunk? (router side)
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
(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

7. What is the full E164 format?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
SERVICE PARAMETER> Automated Alternate Routing Enable > True

8. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Apply it to the ephone.
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.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

9. When can you not use a Standard Local Route Group?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
When configuring TEHO.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Allows you to transfer by only pressing the Transfer button once.

10. In a SIP Dial Rule how do you represent a dialed * instead of it being used as a wildcard?

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11. 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|(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
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)
It's best to strip digits at the voice port.

12. What are the steps to configure Single Number Reach and Mobile Voice Access?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

TRUE
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

13. How do you configure an MGCP GW? (router side)
Apply voice-class codec
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
(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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

14. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Auto Call Pickup Enabled
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
To enable two-stage dialing.
The Called/Calling Transformations are superceded.

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

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16. What is a best practice for digit manipulation - in regards to H323 GWs?
Matches any length dialed number and truncates it to 4 digits.
SIP Dial Rules
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
voice translation-profile|and|voice translation-rule

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

Apply voice-class codec
SIP Dial Rules
On CUCM it's identical to adding an H323 GW.

18. Name 4 useful show commands for active calls.
#after-hours block pattern
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

19. How do you setup AutoRegistration in CUCM?
Mobile Connect
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Top Down means that channel 1 will be the first channel used to place outgoing calls.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

20. What are the commands to configure a T1/E1 PRI?
#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|(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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Master/Slave relationship. CUCM controls it.

21. How do you see multicast packets being sent?
(config)#voice register dialplan
Service Parameter --> Block OffNet To OffNet Transfer --> True
Debug ephone moh
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

22. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Re-enter the mgcp bind control and mgcp bind media commands.
Ccm-manager music-on-hold
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

23. How do you set the inter-digit timeout for SIP phones in CME?

(config)#voice register dialplan
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
On CUCM it's identical to adding an H323 GW.

24. What are the basic SCCP Commands fro telephony-service in CUCME?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

25. How would you verify that DHCP is working in IOS?
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

(config)#sh cdp neigh detail
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

26. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
#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
#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
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
voice register pool|and|voice register dn

27. What CUCM services should you activate?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In CUCM - configure CFUR to point to it's E164 number.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(config)#sh cdp neigh detail

28. Name 2 commands to verify RSVP functionality.
#voice service voip| #no supplementary-service h225-notify cid-update
Sh ip rsvp reservation||sh sccp connections
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#test voice translation rule 1 <input to test>

29. What's the best way to perform digit manipulation on a route group?
CUCM OS Administration Settings --> NTP Servers
...
Configure it on the route group through the route list - then it will be local to the route list.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

30. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
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
Via the voice hunt-group parallel command

31. How do you configure CUBE?

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32. How do you prevent toll fraud on CUCM?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Assign a logout-profile to the ephone.
...
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

33. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
voice register pool|and|voice register dn
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

34. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
To enable two-stage dialing.
CUCM Service Parameters --> Call Park Reversion Timer
Sends the Calling Name.

35. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
'Use before the ... so XXXX
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
To notify SIP Phones of NTP

36. What would force you to use telephony-service to configure SRST?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Debug isdn q931
CUCM Service Parameters --> Call Park Reversion Timer
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

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

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38. When using drop-through-option What is the max number of huntgroups?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1 ... this is not optional!
Mobile Voice Access

39. What's the best way to do digit manipulation on an IOS gateway?
Debug isdn q931
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
voice translation-profile|and|voice translation-rule

40. How do you block calls under call-manager-fallback?
24kb/s
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Bottom up - to prevent glare.
#after-hours block pattern

41. What is the Service Parameter to allow the phone that is picking ip to auto answer?
TRUE
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.
...
Auto Call Pickup Enabled

42. How do you configure phone ports on a 3750?
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
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 .)
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

43. How is NTP sych setup in CUCM?
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> Automated Alternate Routing Enable > True
CUCM OS Administration Settings --> NTP Servers
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

44. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
'Service Parameters --> Auto Answer Timer
Re-enter the mgcp bind control and mgcp bind media commands.
Put them in a 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

45. 'How do you inform a SIP phone of NTP information?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
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.
Bottom up - to prevent glare.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

46. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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47. How do you configure DHCP in IOS?
'Use before the ... so XXXX
Mobile Connect
(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
Show ccm-manager

48. What does the Transfer On-hook Enabled Service Parameter do?
Sh ccm-manager
Allows you to transfer by only pressing the Transfer button once.
Master/Slave relationship. CUCM controls it.
Dial-peers

49. How do you see the details of calls coming in and out of the PRI?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Show ccm-manager
To notify SIP Phones of NTP
Debug isdn q931

50. How do you enable Extension Mobility for a device in CME?
Device Pool Locations
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Assign a logout-profile to the ephone.
(config)#voice register dialplan