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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. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CUCM Service Parameters --> 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
Assign SIP Dial Rules

2. How do you configure CUCM redundancy on an H323 gateway?
CUCM Service Parameters --> Call Park Reversion Timer
#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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

3. How do you create a trunk on the 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.
Outbound dial-peers
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
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

4. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Service Parameter --> Block OffNet To OffNet Transfer --> True
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
Phone number followed by domain name.|i.e. 3006@ipxcme.com

5. How is NTP sych setup in CUCM?
CUCM OS Administration Settings --> NTP Servers
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Configure it on the route group through the route list - then it will be local to the 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

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

7. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
...
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Service Parameter --> Block OffNet To OffNet Transfer --> True

8. How do you configure SRST?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
#voice service voip| #no supplementary-service h225-notify cid-update
Call-manager-fallback or telephony-service mode SRST
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

9. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Service Parameters --> Mobile Voice Access Number
Bandwidth
It's best to strip digits at the voice port.

10. What are the commands to create the L3 routing interface for VLANS (SVI)?
voice register pool|and|voice register dn
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
When they are explicitly matched in a destination-pattern in a dial-peer.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

11. 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?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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.
Sends the Calling Name.

12. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CUCM Service Parameters --> Call Park Reversion Timer
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

13. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
Call forwarding between voip to voip (when CUBE is in play)
voice register pool|and|voice register dn
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

14. How do you use an ephone template?
Single Number Reach (Mobile Connect)
Apply it to the ephone.
Via the voice hunt-group parallel command
To notify SIP Phones of NTP

15. What are the commands to configure a T1/E1 PRI?
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
(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
CUCM Service Parameters --> Call Park Reversion Timer
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

16. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Dtmf-relay h245-alpha
Sh ccm-manager
Mobile Voice Access
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

17. What commands are needed to configure the voice register pool in CME?
Master/Slave relationship. CUCM controls it.
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
The Called/Calling Transformations are superceded.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

18. What types of digit manipulation can you perform at the route pattern?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

19. On an H323 GW - how do you adjust the timers for redundancy hunting?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Mobile Voice Access
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

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

#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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
(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

21. What is the full E164 format?
#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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
At the CLI: utils ntp status

22. What is a best practice for digit manipulation - in regards to H323 GWs?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Call Simulator. You can use to validate path from router to the PSTN.
#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
(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

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

24. How do you configure an MGCP GW? (router side)
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
...

25. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

26. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Top Down means that channel 1 will be the first channel used to place outgoing calls.
(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
When configuring TEHO.

27. What are the commands to configure NTP in IOS?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Service Parameters --> Mobile Voice Access Number
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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.

28. How do you configure AAR?
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
Ccm-manager music-on-hold
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

29. Calls coming from CUCM to PSTN need what?
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
Outbound dial-peers
It's best to strip digits at the voice port.
CUCM OS Administration Settings --> NTP Servers

30. What does rule 1 /^.*(....$)/ /1/ do?
Ccm-manager music-on-hold
24kb/s
Automatically configures the MGCP GW for you.
Matches any length dialed number and truncates it to 4 digits.

31. How would you enable security on a GK?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
(config)#voice register dialplan
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Put them in a route list.

32. When using drop-through-option What is the max number of huntgroups?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
1 ... this is not optional!
At the CLI: utils ntp status
#after-hours block pattern

33. What is the Enable Enterprise Feature Access Service Parameter used for?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
To enable two-stage dialing.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

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

35. What should you configure before entering auto qos?
Bandwidth
#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
Ccm-manager music-on-hold
#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

36. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
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.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
CUCM Service Parameters --> Call Park Reversion Timer

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

38. What is CSIM?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Call Simulator. You can use to validate path from router to the PSTN.
(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

39. Is the order of the MRGs in an MRGL significant?
(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
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
Debug isdn q931
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

40. How do you support multiple codecs on a dialpeer?
Apply voice-class codec
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

41. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
Service Parameters --> Mobile Voice Access Number
TRUE
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

42. What terminology translates to AAR?
Reroute when here is WAN congestion.
Put them in a route list.
#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 configuring TEHO.

43. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Bottom up - to prevent glare.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
It's best to strip digits at the voice port.

44. 'How do you inform a SIP phone of NTP information?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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

45. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Re-enter the mgcp bind control and mgcp bind media commands.

46. Does CUCM support RSVP natively?
Bandwidth
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

47. What do you need to do to activate the CME GUI?
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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Call-manager-fallback or telephony-service mode SRST
...

48. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
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.
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)
Dtmf-relay h245-alpha

49. What CUCM services should you activate?
(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

CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
The Called/Calling Transformations are superceded.

50. Describe the relationship between route patterns and end devices.
(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
'Service Parameters --> Auto Answer Timer
1 ... this is not optional!
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.