Test your basic knowledge |

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 allow the Calling Name to be sent to the PSTN on a router?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#voice service voip| #no supplementary-service h225-notify cid-update
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Top Down means that channel 1 will be the first channel used to place outgoing calls.

2. What are the steps to integrate CUPS with CUCM?
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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Debug isdn q931
(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

3. How do you configure an MGCP GW? (router side)
When they are explicitly matched in a destination-pattern in a dial-peer.
(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
Assign SIP Dial Rules
Put them in a route list.

4. How do you set the Call Park Reversion Timer?
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
CUCM Service Parameters --> Call Park Reversion Timer
Automatically configures the MGCP GW for you.
'Service Parameters --> Auto Answer Timer

5. How do you configure CUBE?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

6. 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
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
To notify SIP Phones of NTP
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

7. What are the 3 mandatory commands within call-manager-fallback?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Max-dn|max-ephone|ip source-address

8. Privacy is enabled system-wide in CUCM by default. (T or F)
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
TRUE
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

9. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Configure it on the route group through the route list - then it will be local to the route list.
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.

10. What are the commands to configure NTP in IOS?
TRUE
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
(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

11. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
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 ....
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
voice register pool|and|voice register dn

12. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Re-enter the mgcp bind control and mgcp bind media commands.
Call forwarding between voip to voip (when CUBE is in play)
Precede the # with a > ... so 9011*>#
Debug isdn q931

13. Where do you use VIA zone?
Reroute when there is a WAN Outage.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Auto Call Pickup Enabled
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

14. How do you configure AAR?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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.

15. How much bandwidth does a G.729 call including layer 3 require?
Service Parameters --> Mobile Voice Access Number
24kb/s
To notify SIP Phones of NTP
Assign a logout-profile to the ephone.

16. 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.
Debug isdn q931
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#test voice translation rule 1 <input to test>

17. When do you use translate called? Translate calling?
...
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

18. How would you verify that DHCP is working in IOS?
(config)#sh cdp neigh detail
It's best to strip digits at the voice port.
voice translation-profile|and|voice translation-rule
Assign a logout-profile to the ephone.

19. How do you prevent toll fraud on CUCM?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to 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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Show ccm-manager

20. 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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(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

21. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
#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
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
#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

22. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Call Simulator. You can use to validate path from router to the PSTN.
Service Parameters --> Mobile Voice Access Number
CUCM Service Parameters --> Call Park Reversion Timer
Max-dn|max-ephone|ip source-address

23. What are the commands to configure a SIP phone in CUCME?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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
'Use before the ... so XXXX
Configure it on the route group through the route list - then it will be local to the route list.

24. How do you see multicast packets being sent?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
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
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
Debug ephone moh

25. What are the commands to manually configure an MGCP gateway?
Bottom up - to prevent glare.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
#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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

26. How do you configure class of service (CoS) in CUCM? CME?
To notify SIP Phones of NTP
#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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
(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

27. How do you setup AutoRegistration in CUCM?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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!!!
Bandwidth

28. What would force you to use telephony-service to configure SRST?
Auto Call Pickup Enabled
SIP Dial Rules
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Outbound dial-peers

29. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
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.
'Service Parameters --> Auto Answer Timer
...

30. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Apply voice-class codec
Reroute when here is WAN congestion.

31. When do you do digit manipulation at the route pattern as opposed to the route list?
Call Simulator. You can use to validate path from router to the PSTN.
SIP Route Pattern over a SIP Trunk.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

32. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
The Called/Calling Transformations are superceded.
Assign a logout-profile to the ephone.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

33. How do you set the inter-digit timeout for SIP phones in CME?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
(config)#voice register dialplan
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

34. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
#after-hours block pattern
Call Simulator. You can use to validate path from router to the PSTN.
Reroute when here is WAN congestion.

35. What do you need to do to activate the CME GUI?
Dtmf-relay h245-alpha
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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

36. How do you see the details of calls coming in and out of the PRI?
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
Debug isdn q931
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True

37. What kind of relationship does an MGCP gateway have with CUCM?
Master/Slave relationship. CUCM controls it.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Re-enter the mgcp bind control and mgcp bind media commands.
Via the voice hunt-group parallel command

38. How do you use an ephone template?
Apply it to the ephone.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Debug ephone moh
In the CUCM 7.0.1 Release Notes ... search for restore.

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

40. When setting up SIP URI where do you configure the CUCM's domain name?'
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
TRUE

41. An MGCP gateway serving as an SRST router requires what?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
SIP Dial Rules
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

42. What does KPML do?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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 .)
Ccm-manager music-on-hold

43. 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?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
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.
In the CUCM 7.0.1 Release Notes ... search for restore.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

44. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Assign a logout-profile to the ephone.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

45. What are the commands to configure SRST in fallback?
(config)#sh cdp neigh detail
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

46. Calls coming from CUCM to PSTN need what?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
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
Outbound dial-peers
...

47. What are two caveats to using the ccm-manager config server</ip> command?

Configure it on the route group through the route list - then it will be local to the route list.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Sh ip rsvp reservation||sh sccp connections

48. 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?
Precede the # with a > ... so 9011*>#
(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
#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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

49. 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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
sh ephone reg|and|debug voip dialpeer

50. 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.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.