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 CSIM?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
'Service Parameters --> Auto Answer Timer
Call Simulator. You can use to validate path from router to the PSTN.
To notify SIP Phones of NTP

2. An MGCP gateway serving as an SRST router requires what?
Put them in a route list.
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
On CUCM it's identical to adding an H323 GW.

3. Describe the relationship between route patterns and end devices.
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.
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.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

5. What should you configure before entering auto qos?
Bandwidth
Matches any length dialed number and truncates it to 4 digits.
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.
#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. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
Reroute when there is a WAN Outage.
In the CUCM 7.0.1 Release Notes ... search for restore.
CUCM OS Administration Settings --> NTP Servers

7. What's the best way to perform digit manipulation on a route group?
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 ....
Configure it on the route group through the route list - then it will be local to the route list.
'Use before the ... so XXXX
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

8. How do you see multicast packets being sent?
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.

Debug ephone moh

9. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Sh ip rsvp reservation||sh sccp connections
Dial-peers
The Called/Calling Transformations are superceded.
Single Number Reach (Mobile Connect)

10. What are two caveats to using the ccm-manager config server</ip> command?

It's best to strip digits at the voice port.
In CUCM - configure CFUR to point to it's E164 number.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

11. When using drop-through-option What is the max number of huntgroups?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

12. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
#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
Master/Slave relationship. CUCM controls it.
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

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

14. How do you configure class of service (CoS) in CUCM? CME?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Sends the Calling Name.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

15. How do you configure phone ports on an ESW?
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)
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
Outbound dial-peers
CUCM Service Parameters --> Call Park Reversion Timer

16. What is Mobile Voice Access?
Mobile Voice Access
In CUCM - configure CFUR to point to it's E164 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 pool|and|voice register dn

17. 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?
At the CLI: utils ntp status
Sh ccm-manager

RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

18. What are the commands to configure a T1/E1 PRI?
...
(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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

19. SNR is also known as?
voice register pool|and|voice register dn
TRUE
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
Mobile Connect

20. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
To enable two-stage dialing.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Re-enter the mgcp bind control and mgcp bind media commands.
CUCM OS Administration Settings --> NTP Servers

21. How much bandwidth does a G.729 call including layer 3 require?
Mobile Voice Access
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
24kb/s
When they are explicitly matched in a destination-pattern in a dial-peer.

22. How would you enable security on a GK?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Apply voice-class codec
CUCM Service Parameters --> Call Park Reversion Timer
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

23. 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
Call-manager-fallback or telephony-service mode SRST
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 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

24. What dtmf-relay type do you use for an H323 GW?
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 ....
When they are explicitly matched in a destination-pattern in a dial-peer.
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
Dtmf-relay h245-alpha

25. What are the commands to configure a MGCP Gateway? (router)
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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
It's best to strip digits at the voice port.

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

Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
(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

27. 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.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

29. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
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
#voice service voip| #no supplementary-service h225-notify cid-update
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

30. What kind of relationship does an MGCP gateway have with CUCM?
Mobile Connect
At the CLI: utils ntp status
Master/Slave relationship. CUCM controls it.
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.

31. How do you prioritize route groups?
...
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Put them in a route list.
SIP Dial Rules

32. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
#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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

33. How do do configure TEHO?
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
Service Parameters --> Mobile Voice Access Number
The Called/Calling Transformations are superceded.
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

34. 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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
(config)#voice register dialplan

35. How do you configure a gateway to register with gatekeeper?
Service Parameters --> Mobile Voice Access Number
Dtmf-relay h245-alpha
#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.

36. What are the commands to manually configure an MGCP gateway?
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.
Bottom up - to prevent glare.
#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
...

37. How do you place SCCP and SIP phones into a single huntgroup?
It's best to strip digits at the voice port.
Via the voice hunt-group parallel command
Put them in a route list.
(config)#sh cdp neigh detail

38. On the RDP What is the Rerouting CSS used for?
#test voice translation rule 1 <input to test>
Reroute when here is WAN congestion.
#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
Single Number Reach (Mobile Connect)

39. 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?
24kb/s
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
It's best to strip digits at the voice port.
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.

40. What is SIP URI?
...
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
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.

41. What are the commands to create vlans on an ESW?
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 ....
Service Parameters --> Mobile Voice Access Number
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

42. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SIP Route Pattern over a SIP Trunk.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Reroute when here is WAN congestion.

43. How do you enable Extension Mobility for a device in CME?
Assign SIP Dial Rules
voice register pool|and|voice register dn
Assign a logout-profile to the ephone.
The Called/Calling Transformations are superceded.

44. What is the Enable Enterprise Feature Access Service Parameter used for?
sh ephone reg|and|debug voip dialpeer
#voice service voip| #no supplementary-service h225-notify cid-update
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 enable two-stage dialing.

45. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Dial-peers
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Call-manager-fallback or telephony-service mode SRST
In CUCM - configure CFUR to point to it's E164 number.

46. Maximum Wait Time for Desk Pickup?
Mobile Connect
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

47. How do you set the inter-digit timeout for SIP phones in CME?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(config)#voice register dialplan
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

48. 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
...
(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
Debug ephone moh
Debug isdn q931

49. On an MGCP GW - how could you see the primary and backup CUCM servers?
The Called/Calling Transformations are superceded.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Show ccm-manager
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

50. How do you configure CUBE?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183