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. How do do configure TEHO?
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
To notify SIP Phones of NTP
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
Apply voice-class codec

2. '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
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
...
Call Simulator. You can use to validate path from router to the PSTN.

3. How much bandwidth does a G.729 call including layer 3 require?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
24kb/s
When multiple sites use the same route pattern - do your digit manipulation on a route list.

4. What terminology translates to SRST?
#voice service voip| #no supplementary-service h225-notify cid-update
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Assign SIP Dial Rules
Reroute when there is a WAN Outage.

5. What are the commands to configure NTP in IOS?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Allows you to transfer by only pressing the Transfer button once.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Bottom up - to prevent glare.

6. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
'Use before the ... so XXXX
Sh ccm-manager
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

7. How do you support multiple codecs on a dialpeer?
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
Apply voice-class codec
The Called/Calling Transformations are superceded.
Allows you to transfer by only pressing the Transfer button once.

8. What are the basic ephone-dn and ephone commands?
TRUE
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
1 ... this is not optional!
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

9. What are the commands to configure a T1/E1 PRI?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Call Simulator. You can use to validate path from router to the PSTN.
...
(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

10. Where do you use VIA zone?
Configure it on the route group through the route list - then it will be local to the route list.
Via the voice hunt-group parallel command
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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

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

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12. What's the best way to do digit manipulation on an IOS gateway?
To notify SIP Phones of NTP
voice translation-profile|and|voice translation-rule
When they are explicitly matched in a destination-pattern in a dial-peer.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

13. Which takes precedence Device Locations or Device Pool Locations?
At the CLI: utils ntp status
Device Pool Locations
Bottom up - to prevent glare.
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.

14. How do you configure CUCM redundancy on an H323 gateway?
(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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
#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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

15. What types of digit manipulation can you perform at the route pattern?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Precede the # with a > ... so 9011*>#
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Phone number followed by domain name.|i.e. 3006@ipxcme.com

16. How do you get around relying on DNS for your CUCMs?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
In CUCM - configure CFUR to point to it's E164 number.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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)

17. What terminology translates to AAR?
Reroute when here is WAN congestion.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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

18. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
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.
#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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
voice register pool|and|voice register dn

19. What commands are needed to configure the voice register pool in CME?
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
Mobile Voice Access
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
Outbound dial-peers

20. When can you not use a Standard Local Route Group?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Outbound dial-peers
When configuring TEHO.
Sends the Calling Name.

21. On an MGCP GW - how could you see the primary and backup CUCM servers?
SIP Route Pattern over a SIP Trunk.

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

22. 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
Automatically configures the MGCP GW for you.
Dial-peers
...
SIP Dial Rules

23. What do you need to do to activate the CME GUI?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
'Service Parameters --> Auto Answer Timer
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
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

24. What is a best practice for digit manipulation - in regards to H323 GWs?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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
To notify SIP Phones of NTP
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

25. How do you set up redundancy on outbound dial-peers on an H323 gateway?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Configure it on the route group through the route list - then it will be local to the route list.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Re-enter the mgcp bind control and mgcp bind media commands.

26. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
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
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>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Sends the Calling Name.

27. How do you configure DHCP in IOS?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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)#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

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

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29. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Dial-peers
...
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

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

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31. How do you configure phone ports on an ESW?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
At the CLI: utils ntp status
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

32. What's the best way to perform digit manipulation on a route group?
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 .)
Call forwarding between voip to voip (when CUBE is in play)
Configure it on the route group through the route list - then it will be local to the route list.
When multiple sites use the same route pattern - do your digit manipulation on a route list.

33. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
The Called/Calling Transformations are superceded.
The name configuration field in ephone-dn and voice register dn
#test voice translation rule 1 <input to test>
...

34. Name 2 commands to verify RSVP functionality.
In CUCM - configure CFUR to point to it's E164 number.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Sh ip rsvp reservation||sh sccp connections
Precede the # with a > ... so 9011*>#

35. How do you block calls under call-manager-fallback?
#after-hours block pattern
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Via the voice hunt-group parallel command

36. What are the commands to configure an H323 GW?
#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
Service Parameter --> Block OffNet To OffNet Transfer --> True
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In the CUCM 7.0.1 Release Notes ... search for restore.

37. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
Re-enter the mgcp bind control and mgcp bind media commands.
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 ....
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

38. 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?
Precede the # with a > ... so 9011*>#
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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.

39. How do you enable AAR?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
At the CLI: utils ntp status
Assign a logout-profile to the ephone.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

40. What are the base telephony-service commands for CME?
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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Assign SIP Dial Rules

41. When using drop-through-option What is the max number of huntgroups?
Bottom up - to prevent glare.
#after-hours block pattern
1 ... this is not optional!
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

42. What are the commands to configure a SIP phone in CUCME?
On CUCM it's identical to adding an H323 GW.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Mobile Connect
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

43. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
Mobile Voice Access
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

44. How do you set the inter-digit timeout for SIP phones in CME?
(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 service voip| #no supplementary-service h225-notify cid-update
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(config)#voice register dialplan

45. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Service Parameters --> Mobile Voice Access Number
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

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.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|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.
Sh ip rsvp reservation||sh sccp connections

47. How do you configure class of service (CoS) in CUCM? CME?
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
SIP Dial Rules
At the CLI: utils ntp status

48. How would you verify that DHCP is working in IOS?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
(config)#sh cdp neigh detail
At the CLI: utils ntp status
(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

49. Maximum Wait Time for Desk Pickup?
1 ... this is not optional!
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

50. What is the Service Parameter to allow the phone that is picking ip to auto answer?
#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
voice register pool|and|voice register dn
Auto Call Pickup Enabled
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.