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 can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Bandwidth
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

2. What does an H323 GW require that MGCP GWs do not?
Assign SIP Dial Rules
Dial-peers
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
#test voice translation rule 1 <input to test>

3. What would force you to use telephony-service to configure 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)
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

4. What are the commands to create the L3 routing interface for VLANS (SVI)?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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
Sh ccm-manager

5. How do you place SCCP and SIP phones into a single huntgroup?
To notify SIP Phones of NTP
Via the voice hunt-group parallel command
IP Voice Media Streaming App
#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

6. How do you configure CUBE?

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7. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Re-enter the mgcp bind control and mgcp bind media commands.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In CUCM - configure CFUR to point to it's E164 number.

8. What are the steps to integrate CUPS with CUCM?
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
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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Assign SIP Dial Rules

9. How do you configure AAR?
Show ccm-manager
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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

10. Does CUCM support RSVP natively?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SIP Route Pattern over a SIP Trunk.

#after-hours block pattern

11. What is CSIM?
Higher
Call Simulator. You can use to validate path from router to the PSTN.
(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
#voice service voip| #no supplementary-service h225-notify cid-update

12. 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?
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
#test voice translation rule 1 <input to test>
#voice service voip| #no supplementary-service h225-notify cid-update
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

13. How do you enable AAR?
...
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 ....
SERVICE PARAMETER> Automated Alternate Routing Enable > True
'Use before the ... so XXXX

14. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Assign SIP Dial Rules
Apply voice-class codec

15. What are the 3 mandatory commands within call-manager-fallback?
At the CLI: utils ntp status
#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
Mobile Connect
Max-dn|max-ephone|ip source-address

16. What should you configure before entering auto qos?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Bandwidth
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)#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

17. What is call-forward pattern used for?
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
Call forwarding between voip to voip (when CUBE is in play)
Auto Call Pickup Enabled
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

18. What are the commands to create vlans on an ESW?
(config)#sh cdp neigh detail
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Device Pool Locations
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

19. How would you verify that DHCP is working in IOS?
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
(config)#sh cdp neigh detail
CUCM Service Parameters --> Call Park Reversion Timer
Phone number followed by domain name.|i.e. 3006@ipxcme.com

20. 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?
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)
Sh ip rsvp reservation||sh sccp connections
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
#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

21. What commands are needed to configure the voice register pool in CME?
voice register pool|and|voice register dn
To enable two-stage dialing.
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
...

22. 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.
On CUCM it's identical to adding an H323 GW.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

23. Privacy is enabled system-wide in CUCM by default. (T or F)
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
TRUE
Re-enter the mgcp bind control and mgcp bind media commands.

24. When do you use translate called? Translate calling?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Allows you to transfer by only pressing the Transfer button once.
The Called/Calling Transformations are superceded.

25. What's the best way to perform digit manipulation on a route group?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Configure it on the route group through the route list - then it will be local to the route list.
CUCM OS Administration Settings --> NTP Servers
Ccm-manager music-on-hold

26. What is the Enable Enterprise Feature Access Service Parameter used for?
Apply it to the ephone.
(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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
To enable two-stage dialing.

27. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Re-enter the mgcp bind control and mgcp bind media commands.
#voice service voip| #no supplementary-service h225-notify cid-update

28. Maximum Wait Time for Desk Pickup?
Outbound dial-peers
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

29. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
CUCM OS Administration Settings --> NTP Servers
Sh ip rsvp reservation||sh sccp connections
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.
Show ccm-manager

30. SNR is also known as?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
In the CUCM 7.0.1 Release Notes ... search for restore.
(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
Mobile Connect

31. What are the commands to configure a T1/E1 PRI?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
(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 forwarding between voip to voip (when CUBE is in play)
Apply voice-class codec

32. Name 2 commands to verify RSVP functionality.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
8kb/s
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Sh ip rsvp reservation||sh sccp connections

33. How do you configure CUCM redundancy on an H323 gateway?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

#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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

34. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
At the CLI: utils ntp status
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Service Parameters --> Mobile Voice Access Number
CUCM OS Administration Settings --> NTP Servers

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

36. On an MGCP GW - how could you see the primary and backup CUCM servers?
Apply voice-class codec
Sh ccm-manager
Show ccm-manager
At the CLI: utils ntp status

37. What are the commands to configure a MGCP Gateway? (router)
'Use before the ... so XXXX
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
1 ... this is not optional!
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

38. What does the Transfer On-hook Enabled Service Parameter do?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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 .)
Allows you to transfer by only pressing the Transfer button once.
When they are explicitly matched in a destination-pattern in a dial-peer.

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

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

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41. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Single Number Reach (Mobile Connect)
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
#voice service voip| #no supplementary-service h225-notify cid-update

42. What are the commands to configure 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
Apply it to the ephone.
#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
Put them in a route list.

43. What terminology translates to SRST?
Reroute when there is a WAN Outage.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

44. How do you disable KPML?
CUCM Service Parameters --> Call Park Reversion Timer
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Assign SIP Dial Rules
sh ephone reg|and|debug voip dialpeer

45. What's the difference between AAR and SRST?
(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
Bandwidth
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

46. When using drop-through-option What is the max number of huntgroups?
Mobile Voice Access
1 ... this is not optional!
Device Pool Locations
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

47. How do you set up redundancy on outbound dial-peers on an H323 gateway?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

48. How do you see the details of calls coming in and out of the PRI?
Debug isdn q931
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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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

49. How do you create a trunk on the switch side?
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
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
#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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

50. 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.
24kb/s
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
(config)#voice register dialplan