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

2. What are the commands to create the L3 routing interface for VLANS (SVI)?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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
Higher
(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

3. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
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.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Re-enter the mgcp bind control and mgcp bind media commands.
#voice service voip| #no supplementary-service h225-notify cid-update

4. How do you configure DHCP in IOS?
Call forwarding between voip to voip (when CUBE is in play)
SIP Route Pattern over a SIP Trunk.
(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
#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

5. How do you set the Call Park Reversion Timer?
Service Parameter --> Block OffNet To OffNet Transfer --> True
CUCM Service Parameters --> Call Park Reversion Timer
Via the voice hunt-group parallel command
To notify SIP Phones of NTP

6. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
voice register pool|and|voice register dn
Device Pool Locations
Bandwidth

7. On the RDP What is the Rerouting CSS used for?
Single Number Reach (Mobile Connect)

Assign a logout-profile to the ephone.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

8. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
The Called/Calling Transformations are superceded.
#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
Bottom up - to prevent glare.

9. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Call forwarding between voip to voip (when CUBE is in play)

10. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
...
Ccm-manager music-on-hold
Max-dn|max-ephone|ip source-address
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

11. 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
Single Number Reach (Mobile Connect)
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

12. How do you configure a gateway to register with gatekeeper?
#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
Higher
Call forwarding between voip to voip (when CUBE is in play)
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

13. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

14. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
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.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Master/Slave relationship. CUCM controls it.

15. What kind of relationship does an MGCP gateway have with CUCM?
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.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Master/Slave relationship. CUCM controls it.
Configure it on the route group through the route list - then it will be local to the route list.

16. What are the commands to manually configure an MGCP gateway?
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
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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#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. What are the basic ephone-dn and ephone commands?
'Use before the ... so XXXX
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
IP Voice Media Streaming App
1 ... this is not optional!

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

19. With the gw-priority command - does higher or lower priority take precedence?
Higher
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
24kb/s
SERVICE PARAMETER> Automated Alternate Routing Enable > True

20. How do do configure TEHO?
...
Service Parameter --> Block OffNet To OffNet Transfer --> True
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

21. An MGCP gateway serving as an SRST router requires what?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

22. 'How do you inform a SIP phone of NTP information?
Dtmf-relay h245-alpha
Reroute when there is a WAN Outage.
(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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

23. What is call-forward pattern used for?
When they are explicitly matched in a destination-pattern in a dial-peer.
'Use before the ... so XXXX
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Call forwarding between voip to voip (when CUBE is in play)

24. How do you change modes in voice register global?
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.
In CUCM - configure CFUR to point to it's E164 number.
To enable two-stage dialing.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

25. What are the commands to configure a MGCP Gateway? (router)
8kb/s
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
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

26. What does KPML do?
Debug isdn q931
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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

27. Describe how you configure SIP URI functionality.
IP Voice Media Streaming App

(config)#sh cdp neigh detail
When multiple sites use the same route pattern - do your digit manipulation on a route list.

28. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Max-dn|max-ephone|ip source-address
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.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Auto Call Pickup Enabled

29. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
(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
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

30. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
voice register pool|and|voice register dn
Bottom up - to prevent glare.
(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

31. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Sh ccm-manager
Outbound dial-peers
Bottom up - to prevent glare.

32. How do you prevent toll fraud on CUCM?
Outbound dial-peers
Dial-peers
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

33. What is Mobile Voice Access?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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 milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

34. Does CUCM support RSVP natively?
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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
In CUCM - configure CFUR to point to it's E164 number.
Call Simulator. You can use to validate path from router to the PSTN.

35. What does Display-IE do?
IP Voice Media Streaming App
Single Number Reach (Mobile Connect)
Sends the Calling Name.
voice register pool|and|voice register dn

36. By Nov. 16 - 2010||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Mobile Voice Access
Single Number Reach (Mobile Connect)

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

38. 'If you want to make changes to any softkeys where do you do it?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
(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
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

39. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Allows you to transfer by only pressing the Transfer button once.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

40. SNR is also known as?
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
Mobile Connect
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

41. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
The Called/Calling Transformations are superceded.
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.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

42. What are the commands to create vlans on an ESW?
'Service Parameters --> Auto Answer Timer
Precede the # with a > ... so 9011*>#
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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

43. How do you see multicast packets being sent?
Debug ephone moh
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
CUCM OS Administration Settings --> NTP Servers

44. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

45. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
#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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
...

46. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In the CUCM 7.0.1 Release Notes ... search for restore.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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
CUCM OS Administration Settings --> NTP Servers

47. How do you configure phone ports on an ESW?
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.
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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Allows you to transfer by only pressing the Transfer button once.

48. On an H323 GW - how do you adjust the timers for redundancy hunting?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
IP Voice Media Streaming App

49. How would you verify that DHCP is working in IOS?
Apply voice-class codec
(config)#sh cdp neigh detail

Configure it on the route group through the route list - then it will be local to the route list.

50. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
Call Simulator. You can use to validate path from router to the PSTN.

(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