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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 do configure TEHO?
8kb/s
Device Pool Locations
Assign a logout-profile to the ephone.
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. Is the order of the MRGs in an MRGL significant?
Auto Call Pickup Enabled
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

3. How do you support multiple codecs on a dialpeer?
Apply voice-class codec
Reroute when here is WAN congestion.

In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

4. How is NTP sych setup in CUCM?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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 .)
CUCM OS Administration Settings --> NTP Servers
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 ....

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

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6. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Service Parameters --> Mobile Voice Access Number
Assign SIP Dial Rules
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Service Parameter --> Block OffNet To OffNet Transfer --> True

7. How do you block an external call from being transferred back out to the pstn by an internal user?
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)
When they are explicitly matched in a destination-pattern in a dial-peer.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

8. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
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 the CUCM 7.0.1 Release Notes ... search for restore.
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

9. When do you do digit manipulation at the route pattern as opposed to the route list?
To notify SIP Phones of NTP
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
When multiple sites use the same route pattern - do your digit manipulation on a route list.

10. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Show ccm-manager
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Configure it on the route group through the route list - then it will be local to 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.

11. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
...
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Service Parameter --> Block OffNet To OffNet Transfer --> True

12. What types of digit manipulation can you perform at the route pattern?
SIP Dial Rules
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

13. How do you set the Call Park Reversion Timer?
1 ... this is not optional!
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
CUCM Service Parameters --> Call Park Reversion Timer

14. What does Display-IE do?
Service Parameters --> Mobile Voice Access Number
In CUCM - configure CFUR to point to it's E164 number.
Sends the Calling Name.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

15. What kind of relationship does an MGCP gateway have with CUCM?
1 ... this is not optional!
Master/Slave relationship. CUCM controls it.
...
Bandwidth

16. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Reroute when here is WAN congestion.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Re-enter the mgcp bind control and mgcp bind media commands.
8kb/s

17. 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.
Debug isdn q931
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.

18. How do you configure SRST?
Call-manager-fallback or telephony-service mode SRST
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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 ....

19. How do you configure class of service (CoS) in CUCM? CME?
(config)#voice register dialplan
Bottom up - to prevent glare.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

20. In Gatekeeper CAC how do you restrict a specific endpoint?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Sh ip rsvp reservation||sh sccp connections
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

21. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Max-dn|max-ephone|ip source-address
CUCM OS Administration Settings --> NTP Servers
#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

22. 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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
The name configuration field in ephone-dn and voice register dn
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

23. What is CSIM?
Matches any length dialed number and truncates it to 4 digits.
Device Pool Locations
Call Simulator. You can use to validate path from router to the PSTN.
IP Voice Media Streaming App

24. What is the bit rate for a G.729 call excluding layer 2?
(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
8kb/s
Via the voice hunt-group parallel command
Matches any length dialed number and truncates it to 4 digits.

25. 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
SIP Dial Rules
Sh ip rsvp reservation||sh sccp connections
Precede the # with a > ... so 9011*>#

26. How do you prevent toll fraud on CUCM?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Single Number Reach (Mobile Connect)
Mobile Voice Access
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

27. What are the commands to configure a MGCP Gateway? (router)
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Assign a logout-profile to the ephone.
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
...

28. How do you setup AutoRegistration in CUCM?
In the CUCM 7.0.1 Release Notes ... search for restore.
1 ... this is not optional!
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
When configuring TEHO.

29. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Sh ccm-manager

Assign a logout-profile to the ephone.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

30. How do you enable Extension Mobility for a device in CME?
Re-enter the mgcp bind control and mgcp bind media commands.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Call-manager-fallback or telephony-service mode SRST
Assign a logout-profile to the ephone.

31. What is Mobile Voice Access?
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 .)
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
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
#test voice translation rule 1 <input to test>

32. When using drop-through-option What is the max number of huntgroups?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
1 ... this is not optional!
Apply it to the ephone.
SIP Dial Rules

33. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
CUCM OS Administration Settings --> NTP Servers
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

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

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35. When a CUCM device dials a number - what happens?

You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
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 .)
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

36. What are the steps to integrate CUPS with CUCM?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Apply it to the ephone.
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

37. How do you configure AAR?
#test voice translation rule 1 <input to test>
Re-enter the mgcp bind control and mgcp bind media commands.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Bandwidth

38. What does KPML do?
Debug ephone moh
Sh ccm-manager
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
CUCM OS Administration Settings --> NTP Servers

39. '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
...
Auto Call Pickup Enabled
#after-hours block pattern
#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

40. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Ccm-manager music-on-hold
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
CUCM OS Administration Settings --> NTP Servers
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

41. 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 ....
Show ccm-manager
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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 .)

42. How do you place SCCP and SIP phones into a single huntgroup?
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
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.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Via the voice hunt-group parallel command

43. 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?
It's best to strip digits at the voice port.
Matches any length dialed number and truncates it to 4 digits.
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 Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

44. Maximum Wait Time for Desk Pickup?

(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
Single Number Reach (Mobile Connect)
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

45. What does ccm-manager config server [IP]</ip> do?
CUCM Service Parameters --> Call Park Reversion Timer
Automatically configures the MGCP GW for you.
...
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.

46. How do you block calls under call-manager-fallback?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Allows you to transfer by only pressing the Transfer button once.
#after-hours block pattern
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

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

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48. 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?
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
#after-hours block pattern
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

49. What are two caveats to using the ccm-manager config server</ip> command?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
When they are explicitly matched in a destination-pattern in a dial-peer.
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.

50. What is a best practice for digit manipulation - in regards to H323 GWs?
voice translation-profile|and|voice translation-rule
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.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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