Test your basic knowledge |

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. What does rule 1 /^.*(....$)/ /1/ do?
Debug ephone moh
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
Matches any length dialed number and truncates it to 4 digits.
IP Voice Media Streaming App

2. How do you block calls under call-manager-fallback?
Call Simulator. You can use to validate path from router to the PSTN.
Configure it on the route group through the route list - then it will be local to the route list.
#after-hours block pattern
#voice service voip| #no supplementary-service h225-notify cid-update

3. Maximum Wait Time for Desk Pickup?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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
Mobile Connect
When configuring TEHO.

4. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
In the CUCM 7.0.1 Release Notes ... search for restore.
At the CLI: utils ntp status
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
The Called/Calling Transformations are superceded.

5. Privacy is enabled system-wide in CUCM by default. (T or F)
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
TRUE
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Apply voice-class codec

6. What should you configure before entering auto qos?
Bandwidth
'Use before the ... so XXXX
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
Precede the # with a > ... so 9011*>#

7. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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
Service Parameter --> Block OffNet To OffNet Transfer --> True
voice register pool|and|voice register dn

8. How do you get around relying on DNS for your CUCMs?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Outbound dial-peers
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
'Service Parameters --> Auto Answer Timer

9. How do you configure DHCP in IOS?

Service Parameters --> Mobile Voice Access Number
(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
Top Down means that channel 1 will be the first channel used to place outgoing calls.

10. An MGCP gateway serving as an SRST router requires what?
Higher
#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
It's best to strip digits at the voice port.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

11. 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
Auto Call Pickup Enabled
CUCM Service Parameters --> Call Park Reversion Timer
...
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

12. 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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#sh cdp neigh detail
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

13. What's the difference between AAR and SRST?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Sh ip rsvp reservation||sh sccp connections

AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

14. What does Display-IE do?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Sends the Calling Name.
(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

15. 'How do you inform a SIP phone of NTP information?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
1 ... this is not optional!
Bandwidth
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

16. What is the full E164 format?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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

17. What does an H323 GW require that MGCP GWs do not?

Dial-peers
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.
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)

18. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
Allows you to transfer by only pressing the Transfer button once.
Assign SIP Dial Rules
Apply it to the ephone.

19. 'If you're not getting a DHCP address from CUCM what then?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
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.
Sends the Calling Name.

20. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
#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
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

21. How do you configure CUBE?

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22. What is the Enable Enterprise Feature Access Service Parameter used for?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
To enable two-stage dialing.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

23. How would you verify that DHCP is working in IOS?
Assign SIP Dial Rules
Auto Call Pickup Enabled
(config)#sh cdp neigh detail
SIP Dial Rules

24. When can you not use a Standard Local Route Group?
When configuring TEHO.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

25. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Device Pool Locations
Sh ccm-manager
(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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

26. What is Phone NTP Reference used for?
To notify SIP Phones of NTP
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
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
Call Simulator. You can use to validate path from router to the PSTN.

27. When setting up SIP URI where do you configure the CUCM's domain name?'
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
In the CUCM 7.0.1 Release Notes ... search for restore.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

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

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29. How do you see multicast packets being sent?
Single Number Reach (Mobile Connect)
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Debug ephone moh
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

30. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(config)#sh cdp neigh detail
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Matches any length dialed number and truncates it to 4 digits.

31. How do you configure a SIP Trunk? (router side)
Ccm-manager music-on-hold
TRUE
8kb/s
(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

32. What terminology translates to AAR?
(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
Reroute when here is WAN congestion.
Auto Call Pickup Enabled

33. What do you need to do to activate the CME GUI?
Reroute when here is WAN congestion.
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
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
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)

34. 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?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
sh ephone reg|and|debug voip dialpeer
'Service Parameters --> Auto Answer Timer

35. How do you test a Voice Translation Rule?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
'Service Parameters --> Auto Answer Timer
...
#test voice translation rule 1 <input to test>

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

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37. 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.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Bottom up - to prevent glare.

38. What are the commands to configure SIP phones in CME?
#after-hours block pattern
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

39. How do you verify that NTP is working on the CUCM server?
At the CLI: utils ntp status
Via the voice hunt-group parallel command
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 .)
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

40. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
8kb/s
1 ... this is not optional!
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

41. How do you ensure no inter-digit timeout fro SIP phones within CUCM?

SIP Dial Rules
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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. What is a best practice for digit manipulation - in regards to H323 GWs?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
The name configuration field in ephone-dn and voice register dn

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

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44. When a CUCM device dials a number - what happens?
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 .)
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Apply it to the ephone.
Call Simulator. You can use to validate path from router to the PSTN.

45. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
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
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Debug isdn q931

46. What are the commands to configure a MGCP Gateway? (router)
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
Bandwidth
...
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

47. How do you setup AutoRegistration in CUCM?
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.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

48. When do you do digit manipulation at the route pattern as opposed to the route list?
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 .)
At the CLI: utils ntp status
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

49. 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.
At the CLI: utils ntp status
On CUCM it's identical to adding an H323 GW.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

50. Where do you use VIA zone?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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
IP Voice Media Streaming App
Sends the Calling Name.