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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 a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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 .)
(config)#sh cdp neigh detail
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

2. Describe the relationship between route patterns and end devices.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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.
#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
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

3. How do you enable Extension Mobility for a device in CME?
Assign a logout-profile to the ephone.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

4. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Apply voice-class codec
SERVICE PARAMETER> Automated Alternate Routing Enable > True
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

5. What is the full E164 format?

+ [CC 1-3 digits] [National Number max 15 minus CC digits]
CUCM OS Administration Settings --> NTP Servers
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

6. How can you confirm the MGCP GW is registered to CUCM - in IOS?
(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
Sh ccm-manager
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 .)
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

7. What CM Service needs to be start in Serviceability for MOH to work?
(config)#voice register dialplan
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
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
IP Voice Media Streaming App

8. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
24kb/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

9. What does Display-IE do?
Sends the Calling Name.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
It's best to strip digits at the voice port.
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 .)

10. Where do you use VIA zone?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Show ccm-manager
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
sh ephone reg|and|debug voip dialpeer

11. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?

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 ....
'Use before the ... so XXXX
Top Down means that channel 1 will be the first channel used to place outgoing calls.

12. SNR is also known as?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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
The Called/Calling Transformations are superceded.
Mobile Connect

13. How do you ensure that G.711 only is used?
Debug isdn q931
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
voice register pool|and|voice register dn

14. What is call-forward pattern used for?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Call forwarding between voip to voip (when CUBE is in play)
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(config)#voice register dialplan

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

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16. What are the commands to manually configure an MGCP gateway?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
When they are explicitly matched in a destination-pattern in a dial-peer.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to 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

17. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?

1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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.
voice register pool|and|voice register dn

18. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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
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
Ccm-manager music-on-hold
Call Simulator. You can use to validate path from router to the PSTN.

19. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
1 ... this is not optional!
24kb/s

20. How do you use an ephone template?
Apply it to the ephone.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
(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
It's best to strip digits at the voice port.

21. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
SIP Dial Rules
The name configuration field in ephone-dn and voice register dn
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

22. On an H323 GW - how do you adjust the timers for redundancy hunting?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Apply voice-class codec
Put them in a route list.

23. 'If you want to make changes to any softkeys where do you do it?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Apply it to the ephone.
On CUCM it's identical to adding an H323 GW.

24. How do you enable AAR system wide?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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 .)
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
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

25. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
#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
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
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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

26. How do do configure TEHO?
Put them in a route list.
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
Max-dn|max-ephone|ip source-address
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

27. 'If you're not getting a DHCP address from CUCM what then?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Automatically configures the MGCP GW for you.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
When multiple sites use the same route pattern - do your digit manipulation on a route list.

28. How do you set the Call Park Reversion Timer?
Outbound dial-peers
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
CUCM Service Parameters --> Call Park Reversion Timer
Configure it on the route group through the route list - then it will be local to the route list.

29. Two useful troubleshooting commands for CUCME?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Show ccm-manager
sh ephone reg|and|debug voip dialpeer

30. How do you allow the Calling Name to be sent to the PSTN on a router?
1 ... this is not optional!
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
sh ephone reg|and|debug voip dialpeer
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

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

At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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 ....
Call forwarding between voip to voip (when CUBE is in play)

32. How do you configure phone ports on an ESW?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

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

33. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

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

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35. What are the commands to configure SRST in fallback?
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.
#voice service voip| #no supplementary-service h225-notify cid-update
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

36. In CME Where is the Calling Name derived from?
(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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
(config)#sh cdp neigh detail
The name configuration field in ephone-dn and voice register dn

37. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
SIP Route Pattern over a SIP Trunk.
CUCM Service Parameters --> Call Park Reversion Timer

38. How do you prevent toll fraud on CME?
Reroute when here is WAN congestion.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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 ....

39. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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
Service Parameters --> Mobile Voice Access Number
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

40. Name 4 useful show commands for active calls.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
On CUCM it's identical to adding an H323 GW.
Sh ip rsvp reservation||sh sccp connections
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

41. What are the commands to configure SIP phones in CME?
TRUE
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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

42. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
#after-hours block pattern
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.
#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

43. What's the best way to perform digit manipulation on a route group?
Configure it on the route group through the route list - then it will be local to the route list.
TRUE
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

44. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
(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

45. How would you verify that DHCP is working in IOS?
(config)#sh cdp neigh detail
Allows you to transfer by only pressing the Transfer button once.
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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

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

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47. How do you see the details of calls coming in and out of the PRI?
8kb/s
Debug isdn q931
IP Voice Media Streaming App
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

48. How do you configure AAR?

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.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

49. On the RDP What is the CSS used for?
Mobile Voice Access
...
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
8kb/s

50. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.