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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 create a trunk on the router side?
24kb/s
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
#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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

2. How do you configure phone ports on an ESW?
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
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
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.
Automatically configures the MGCP GW for you.

3. How do you set the inter-digit timeout for SIP phones in CME?
Reroute when here is WAN congestion.
(config)#voice register dialplan
Allows you to transfer by only pressing the Transfer button once.
#test voice translation rule 1 <input to test>

4. What are the steps to integrate CUPS with CUCM?
8kb/s
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
When they are explicitly matched in a destination-pattern in a dial-peer.

5. What does an H323 GW require that MGCP GWs do not?
Mobile Connect
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.
Dial-peers
#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

6. 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 is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
To notify SIP Phones of NTP
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
...
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

7. What are the commands to configure SRST in fallback?
Call forwarding between voip to voip (when CUBE is in play)
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

8. What does the Transfer On-hook Enabled Service Parameter do?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Allows you to transfer by only pressing the Transfer button once.
Automatically configures the MGCP GW for you.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

9. 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?
8kb/s
(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
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)
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

10. Privacy is enabled system-wide in CUCM by default. (T or F)
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
TRUE
When multiple sites use the same route pattern - do your digit manipulation on a route list.

11. What types of digit manipulation can you perform at the route pattern?
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.
Assign a logout-profile to the ephone.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

12. How do you prevent H323 caller-id updates to CUCM
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Call-manager-fallback or telephony-service mode SRST
#voice service voip| #no supplementary-service h225-notify cid-update
Service Parameters --> Mobile Voice Access Number

13. What terminology translates to SRST?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Reroute when there is a WAN Outage.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#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

14. What must you do for a BACD script to work on a CME router?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Auto Call Pickup Enabled
It's best to strip digits at the voice port.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

15. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Ccm-manager music-on-hold
(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 PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

16. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Show ccm-manager
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

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

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18. What are the commands to configure a MGCP Gateway? (router)
The name configuration field in ephone-dn and voice register dn
At the CLI: utils ntp status
Mobile Connect
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

19. On the RDP What is the CSS used for?
Mobile Voice Access
Call forwarding between voip to voip (when CUBE is in play)
The name configuration field in ephone-dn and voice register dn
Debug ephone moh

20. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
#voice service voip| #no supplementary-service h225-notify cid-update
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

21. What commands are needed to configure the voice register pool in CME?
...
SIP Dial Rules
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
Bandwidth

22. What are the 3 mandatory commands within call-manager-fallback?
Dtmf-relay h245-alpha
Max-dn|max-ephone|ip source-address
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
In the CUCM 7.0.1 Release Notes ... search for restore.

23. What are the base telephony-service commands for CME?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
The name configuration field in ephone-dn and voice register dn
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Matches any length dialed number and truncates it to 4 digits.

24. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
Ccm-manager music-on-hold
Dial-peers
Bandwidth

25. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
1 ... this is not optional!
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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
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.

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

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27. Where can you assign the AAR Group?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
CUCM Service Parameters --> Call Park Reversion Timer
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
CUCM OS Administration Settings --> NTP Servers

28. How do you get around relying on DNS for your CUCMs?
Assign SIP Dial Rules
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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)

29. How do you configure CUCM redundancy on an H323 gateway?
SIP Dial Rules
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
#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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

30. 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?
#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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Via the voice hunt-group parallel command

31. What are the commands to configure NTP in IOS?
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
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

32. When are digits stripped in a gateway?
Debug isdn q931
1 ... this is not optional!
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
When they are explicitly matched in a destination-pattern in a dial-peer.

33. What are the commands to configure an H323 GW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
#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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

34. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Reroute when here is WAN congestion.
In the CUCM 7.0.1 Release Notes ... search for restore.

35. How is NTP sych setup in CUCM?
CUCM OS Administration Settings --> NTP Servers

On CUCM it's identical to adding an H323 GW.
Outbound dial-peers

36. How do you create a trunk on the switch side?
'Use before the ... so XXXX
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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
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.

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

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

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39. What are the commands to configure SIP phones in CME?
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 ....
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 - Partitions and Calling Search Spaces||CME - COR Lists
At the CLI: utils ntp status

40. How do you prevent toll fraud on CME?
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 ....
(config)#sh cdp neigh detail
sh ephone reg|and|debug voip dialpeer
(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

41. 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?
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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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.
Dtmf-relay h245-alpha

42. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Re-enter the mgcp bind control and mgcp bind media commands.
Sh ip rsvp reservation||sh sccp connections
Ccm-manager music-on-hold
In CUCM - configure CFUR to point to it's E164 number.

43. When setting up SIP URI where do you configure the CUCM's domain name?'
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
voice translation-profile|and|voice translation-rule
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Bottom up - to prevent glare.

44. How do you set the Call Park Reversion Timer?
In the CUCM 7.0.1 Release Notes ... search for restore.
Re-enter the mgcp bind control and mgcp bind media commands.
CUCM Service Parameters --> Call Park Reversion Timer
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

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

46. Describe how you configure SIP URI functionality.
Debug ephone moh
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Put them in a route list.

47. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
...
#test voice translation rule 1 <input to test>
When configuring TEHO.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

48. Name 4 useful show commands for active calls.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
...
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

49. How do you configure an MGCP GW? (router side)
(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
(config)#sh cdp neigh detail
SIP Route Pattern over a SIP Trunk.
Matches any length dialed number and truncates it to 4 digits.

50. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
When configuring TEHO.
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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1