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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. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager
Service Parameter --> Block OffNet To OffNet Transfer --> True
voice register pool|and|voice register dn
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

2. How do you configure phone ports on a 3750?

Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
#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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

3. What are the basic SCCP Commands fro telephony-service in CUCME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Apply voice-class codec
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

4. How do you configure a SIP Trunk? (router side)
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
8kb/s
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

5. What is the Service Parameter to allow the phone that is picking ip to auto answer?
At the CLI: utils ntp status
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
In CUCM - configure CFUR to point to it's E164 number.
Auto Call Pickup Enabled

6. How do you setup AutoRegistration in CUCM?
Master/Slave relationship. CUCM controls it.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

7. With the gw-priority command - does higher or lower priority take precedence?
Higher
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

8. What is the Enable Enterprise Feature Access Service Parameter used for?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Debug ephone moh
To enable two-stage dialing.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

9. How do you use the # as a string terminator within a SIP Dial Rule?
Call forwarding between voip to voip (when CUBE is in play)
Precede the # with a > ... so 9011*>#

Matches any length dialed number and truncates it to 4 digits.

10. When do you use translate called? Translate calling?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Put them in a route list.
TRUE

11. What are the commands to create vlans on an ESW?
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 ....
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

12. Does CUCM support RSVP natively?
Higher
Apply it to the ephone.
Reroute when there is a WAN Outage.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

13. What are the commands to configure SRST in fallback?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Reroute when here is WAN congestion.
'Use before the ... so XXXX

14. When can you not use a Standard Local Route Group?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
When configuring TEHO.
The name configuration field in ephone-dn and voice register dn
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

15. Is the order of the MRGs in an MRGL significant?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

16. What CUCM services should you activate?
SIP Route Pattern over a SIP Trunk.
The name configuration field in ephone-dn and voice register dn
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

17. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Auto Call Pickup Enabled
Ccm-manager music-on-hold
In the CUCM 7.0.1 Release Notes ... search for restore.
(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

18. What's the difference between AAR and SRST?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Dtmf-relay h245-alpha
'Service Parameters --> Auto Answer Timer
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

19. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
#test voice translation rule 1 <input to test>
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#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

20. How do you set the inter-digit timeout for SIP phones in CME?
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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(config)#voice register dialplan
Outbound dial-peers

21. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
'Use before the ... so XXXX
IP Voice Media Streaming App
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

22. How do you block calls under call-manager-fallback?
Ccm-manager music-on-hold
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)
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
#after-hours block pattern

23. How do you configure class of service (CoS) in CUCM? CME?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
The Called/Calling Transformations are superceded.
In the CUCM 7.0.1 Release Notes ... search for restore.

24. Where do you use VIA zone?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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
Show ccm-manager
Precede the # with a > ... so 9011*>#

25. What is Mobile Voice Access?
Single Number Reach (Mobile Connect)
Service Parameters --> Mobile Voice Access Number
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

26. How do you configure CUBE?

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27. How do do configure TEHO?
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
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.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Mobile Voice Access

28. How is NTP sych setup in CUCM?
(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
Dial-peers
CUCM OS Administration Settings --> NTP Servers
SIP Dial Rules

29. 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:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
#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
Allows you to transfer by only pressing the Transfer button once.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

30. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Debug isdn q931
Re-enter the mgcp bind control and mgcp bind media commands.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

31. Name 2 commands to verify RSVP functionality.
Assign a logout-profile to the ephone.
Sh ip rsvp reservation||sh sccp connections
#test voice translation rule 1 <input to test>
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

32. When using drop-through-option What is the max number of huntgroups?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
CUCM OS Administration Settings --> NTP Servers
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.
1 ... this is not optional!

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

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34. How do you see the details of calls coming in and out of the PRI?
Mobile Connect
Debug isdn q931
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
1 ... this is not optional!

35. What is Phone NTP Reference used for?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
To notify SIP Phones of NTP
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Higher

36. When setting up SIP URI where do you configure the CUCM's domain name?'
The name configuration field in ephone-dn and voice register dn
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
To notify SIP Phones of NTP

37. When a CUCM device dials a number - what happens?
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.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
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

38. What are the commands to manually configure an MGCP gateway?
#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
'Service Parameters --> Auto Answer Timer
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Reroute when there is a WAN Outage.

39. What is SIP URI?
Max-dn|max-ephone|ip source-address
Dtmf-relay h245-alpha
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Phone number followed by domain name.|i.e. 3006@ipxcme.com

40. Describe how you configure SIP URI functionality.
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 service voip| #no supplementary-service h225-notify cid-update
At the CLI: utils ntp status

41. What is the bit rate for a G.729 call excluding layer 2?
On CUCM it's identical to adding an H323 GW.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
8kb/s

42. How do you configure phone ports on an ESW?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
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

43. How do you configure DHCP in IOS?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
(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
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
Master/Slave relationship. CUCM controls it.

44. What are the basic ephone-dn and ephone commands?
Max-dn|max-ephone|ip source-address
Reroute when here is WAN congestion.
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
Apply it to the ephone.

45. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Bottom up - to prevent glare.
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 Parameters --> Auto Answer Timer
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

46. How do you create a trunk on the switch side?

#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

47. What kind of relationship does an MGCP gateway have with CUCM?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Master/Slave relationship. CUCM controls it.
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)#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

48. How do you verify that NTP is working on the CUCM server?
Device Pool Locations
To notify SIP Phones of NTP
At the CLI: utils ntp status
...

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

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 .)
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Higher

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

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