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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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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 configure CUBE?

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2. When using drop-through-option What is the max number of huntgroups?
SIP Dial Rules
1 ... this is not optional!
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
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 .)

3. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
In the CUCM 7.0.1 Release Notes ... search for restore.
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
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. What does an H323 GW require that MGCP GWs do not?
Dial-peers
Precede the # with a > ... so 9011*>#
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
SIP Route Pattern over a SIP Trunk.

5. What does rule 1 /^.*(....$)/ /1/ do?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Matches any length dialed number and truncates it to 4 digits.
In the CUCM 7.0.1 Release Notes ... search for restore.
TRUE

6. What dtmf-relay type do you use for an H323 GW?
At the CLI: utils ntp status
Dtmf-relay h245-alpha
Outbound dial-peers
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

7. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Assign SIP Dial Rules
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

8. How do you configure class of service (CoS) in CUCM? CME?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Configure it on the route group through the route list - then it will be local to the route list.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
CUCM Service Parameters --> Call Park Reversion Timer

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

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

...

11. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Sh ccm-manager
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
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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

12. What are the commands to configure SIP phones in CME?
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
1 ... this is not optional!
Apply voice-class codec
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

13. What types of digit manipulation can you perform at the route pattern?
Mobile Connect
When multiple sites use the same route pattern - do your digit manipulation on a route list.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Bandwidth

14. On the RDP What is the Rerouting CSS used for?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Mobile Connect
Single Number Reach (Mobile Connect)
SERVICE PARAMETER> Automated Alternate Routing Enable > True

15. SNR is also known as?
(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
Mobile Connect
(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
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

16. How do you see multicast packets being sent?
Dtmf-relay h245-alpha
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
Debug ephone moh
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

17. How would you verify that DHCP is working in IOS?
Reroute when here is WAN congestion.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(config)#sh cdp neigh detail

18. When are digits stripped in a gateway?
...

#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
When they are explicitly matched in a destination-pattern in a dial-peer.

19. What are the basic ephone-dn and ephone commands?
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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Reroute when here is WAN congestion.

20. What is Mobile Voice Access?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Mobile Voice Access
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
(config)#sh cdp neigh detail

21. What are the commands to create the L3 routing interface for VLANS (SVI)?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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)#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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

22. How do you block calls under call-manager-fallback?
It's best to strip digits at the voice port.
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.
Debug isdn q931
#after-hours block pattern

23. What is the Enable Enterprise Feature Access Service Parameter used for?
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
To enable two-stage dialing.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

24. What are the steps to integrate CUPS with CUCM?
Ccm-manager music-on-hold
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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

25. Calls coming from CUCM to PSTN need what?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Outbound dial-peers
Via the voice hunt-group parallel command
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

26. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Show ccm-manager
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Call forwarding between voip to voip (when CUBE is in play)
The Called/Calling Transformations are superceded.

27. 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?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Single Number Reach (Mobile Connect)
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)
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

28. How do you configure a gateway to register with gatekeeper?
Matches any length dialed number and truncates it to 4 digits.
Call forwarding between voip to voip (when CUBE is in play)
#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
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

29. 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.
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 ....
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#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

30. On an H323 GW - how do you adjust the timers for redundancy hunting?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

31. What is a best practice for digit manipulation - in regards to H323 GWs?
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
In CUCM - configure CFUR to point to it's E164 number.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
(config)#voice register dialplan

32. How would you enable security on a GK?
(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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
#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

33. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
#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
Re-enter the mgcp bind control and mgcp bind media commands.
(config)#sh cdp neigh detail
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

34. What's the best way to perform digit manipulation on a route group?
Call-manager-fallback or telephony-service mode SRST
Configure it on the route group through the route list - then it will be local to the route list.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Auto Call Pickup Enabled

35. Privacy is enabled system-wide in CUCM by default. (T or F)
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
Sh ip rsvp reservation||sh sccp connections
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
TRUE

36. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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 .)
Sh ccm-manager
Reroute when there is a WAN Outage.

37. What commands are needed to configure the voice register pool in CME?
1 ... this is not optional!
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
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

38. When can you not use a Standard Local Route Group?
When configuring TEHO.
voice register pool|and|voice register dn
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

39. 'How do you inform a SIP phone of NTP information?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
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.
Ccm-manager music-on-hold
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

40. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Call Simulator. You can use to validate path from router to the PSTN.
Mobile Voice Access
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

41. How do you block an external call from being transferred back out to the pstn by an internal user?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Sends the Calling Name.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Service Parameter --> Block OffNet To OffNet Transfer --> True

42. What is the full E164 format?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
#after-hours block pattern
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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

43. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
Put them in a route list.
Allows you to transfer by only pressing the Transfer button once.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

44. An MGCP gateway serving as an SRST router requires what?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Matches any length dialed number and truncates it to 4 digits.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Re-enter the mgcp bind control and mgcp bind media commands.

45. 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?
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.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
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

46. 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?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
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
Auto Call Pickup Enabled
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

47. With the gw-priority command - does higher or lower priority take precedence?
Higher
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 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.
Re-enter the mgcp bind control and mgcp bind media commands.

48. What are the commands to create vlans on an ESW?
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
...
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

49. How do you setup AutoRegistration in CUCM?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
At the CLI: utils ntp status
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
CUCM OS Administration Settings --> NTP Servers

50. What are the commands to configure NTP in IOS?
Service Parameter --> Block OffNet To OffNet Transfer --> True
When they are explicitly matched in a destination-pattern in a dial-peer.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
sh ephone reg|and|debug voip dialpeer