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 is the full E164 format?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
(config)#voice register dialplan

2. What types of digit manipulation can you perform at the route pattern?
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Apply it to the ephone.
voice translation-profile|and|voice translation-rule

3. Calls coming from CUCM to PSTN need what?
Assign a logout-profile to the ephone.
8kb/s
Outbound dial-peers
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

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

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5. What are the commands to configure an H323 GW?
#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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#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

6. What dtmf-relay type do you use for an H323 GW?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Dtmf-relay h245-alpha
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.

7. How do you configure CUBE?

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8. When a CUCM device dials a number - what happens?
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
(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
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)
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 .)

9. How do you get around relying on DNS for your CUCMs?
TRUE
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.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Sh ccm-manager

10. What kind of relationship does an MGCP gateway have with CUCM?
Sends the Calling Name.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Master/Slave relationship. CUCM controls it.

11. How would you enable security on a GK?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
voice translation-profile|and|voice translation-rule
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

12. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
voice translation-profile|and|voice translation-rule
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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.
The Called/Calling Transformations are superceded.

13. 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!!!
Assign a logout-profile to the ephone.
...

14. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
CUCM Service Parameters --> Call Park Reversion Timer
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
1 ... this is not optional!

15. What are the base telephony-service commands for CME?
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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 .)

16. With the gw-priority command - does higher or lower priority take precedence?
Sh ccm-manager
Higher
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
Apply voice-class codec

17. What are the commands to configure a T1/E1 PRI?
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.
It's best to strip digits at the voice port.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
(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

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

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19. How do you enable AAR?
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)
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#test voice translation rule 1 <input to test>
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.

20. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
IP Voice Media Streaming App
(config)#voice register dialplan
Debug isdn q931
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

21. 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
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
...
(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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

22. What terminology translates to SRST?
Reroute when there is a WAN Outage.
Sh ip rsvp reservation||sh sccp connections
Assign a logout-profile to the ephone.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

23. How do you setup AutoRegistration in CUCM?
Configure it on the route group through the route list - then it will be local to the route list.
Show ccm-manager
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

24. What must you do for a BACD script to work on a CME router?
SIP Route Pattern over a SIP Trunk.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Put them in a route list.
Single Number Reach (Mobile Connect)

25. Privacy is enabled system-wide in CUCM by default. (T or F)
#test voice translation rule 1 <input to test>

TRUE
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.

26. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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
Master/Slave relationship. CUCM controls it.

27. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
voice register pool|and|voice register dn

28. How do you allow H323 calls to be preserved should the primary H323 GW fail?
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 .)
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

29. 'If you want to make changes to any softkeys where do you do it?
SIP Route Pattern over a SIP Trunk.
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 .)
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

30. How would you verify that DHCP is working in IOS?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(config)#sh cdp neigh detail
Master/Slave relationship. CUCM controls it.

31. 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 ....
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
voice register pool|and|voice register dn

32. What's the difference between AAR and SRST?
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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Single Number Reach (Mobile Connect)
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

33. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SIP Route Pattern over a SIP Trunk.
In the CUCM 7.0.1 Release Notes ... search for restore.
Bandwidth
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.

34. What are the basic ephone-dn and ephone commands?
...
(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
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
Ccm-manager music-on-hold

35. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
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 .)
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Sh ccm-manager

36. How do you verify where MOH is being served up from?

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37. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
At the CLI: utils ntp status
Service Parameters --> Mobile Voice Access Number
Master/Slave relationship. CUCM controls it.

38. Maximum Wait Time for Desk Pickup?
IP Voice Media Streaming App
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
(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
(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

39. How do you configure a gateway to register with gatekeeper?
CUCM OS Administration Settings --> NTP Servers
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.
#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
#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

40. What is CSIM?
(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
Call Simulator. You can use to validate path from router to the PSTN.
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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

41. Where do you use VIA zone?
Max-dn|max-ephone|ip source-address
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
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

42. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
CUCM Service Parameters --> Call Park Reversion Timer
voice register pool|and|voice register dn

43. What is SIP URI?
Matches any length dialed number and truncates it to 4 digits.
Allows you to transfer by only pressing the Transfer button once.
8kb/s
Phone number followed by domain name.|i.e. 3006@ipxcme.com

44. How do you test a Voice Translation Rule?
#test voice translation rule 1 <input to test>
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

45. What CM Service needs to be start in Serviceability for MOH to work?
Call forwarding between voip to voip (when CUBE is in play)
IP Voice Media Streaming App
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.
Mobile Connect

46. What are the steps to configure Single Number Reach and Mobile Voice Access?

#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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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

47. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
Mobile Voice Access
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In CUCM - configure CFUR to point to it's E164 number.

48. When do you do digit manipulation at the route pattern as opposed to the route list?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
In CUCM - configure CFUR to point to it's E164 number.
Call forwarding between voip to voip (when CUBE is in play)
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

49. An MGCP gateway serving as an SRST router requires what?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Reroute when there is a WAN Outage.

50. 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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
(config)#voice register dialplan