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?
In the CUCM 7.0.1 Release Notes ... search for restore.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Mobile Voice Access
Matches any length dialed number and truncates it to 4 digits.

2. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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

3. What is the bit rate for a G.729 call excluding layer 2?
On CUCM it's identical to adding an H323 GW.
8kb/s
#test voice translation rule 1 <input to test>
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

4. 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?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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)
...

5. How do you configure CUCM redundancy on an H323 gateway?
The name configuration field in ephone-dn and voice register dn
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
Master/Slave relationship. CUCM controls it.
#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

6. How do you enable Extension Mobility for a device in CME?
In the CUCM 7.0.1 Release Notes ... search for restore.
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
Assign a logout-profile to the ephone.
(config)#sh cdp neigh detail

7. 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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
It's best to strip digits at the voice port.
...

8. 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.
Mobile Connect
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
The name configuration field in ephone-dn and voice register dn

9. What are the basic ephone-dn and ephone commands?
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
IP Voice Media Streaming App
Mobile Voice Access
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

10. 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

11. How do you block calls under call-manager-fallback?
(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
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#after-hours block pattern

12. 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.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Bandwidth
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

13. 'If you're not getting a DHCP address from CUCM what then?
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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Via the voice hunt-group parallel command

14. What are the commands to configure an H323 GW?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
When they are explicitly matched in a destination-pattern in a 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
#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

15. How do you configure SRST?
(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-manager-fallback or telephony-service mode 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
Configure it on the route group through the route list - then it will be local to the route list.

16. What are the 3 mandatory commands within call-manager-fallback?
1 ... this is not optional!
Max-dn|max-ephone|ip source-address
Call-manager-fallback or telephony-service mode SRST
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 are the commands to configure NTP in IOS?
Apply it to the ephone.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
In CUCM - configure CFUR to point to it's E164 number.

18. On an MGCP GW - how could you see the primary and backup CUCM servers?
To notify SIP Phones of NTP
Outbound dial-peers
Show ccm-manager
1 ... this is not optional!

19. On the RDP What is the Rerouting CSS used for?
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 .)
Assign SIP Dial Rules
Service Parameter --> Block OffNet To OffNet Transfer --> True
Single Number Reach (Mobile Connect)

20. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

21. How do you support multiple codecs on a dialpeer?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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
Call-manager-fallback or telephony-service mode SRST
Apply voice-class codec

22. How do you create a trunk on the router side?
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 Simulator. You can use to validate path from router to the PSTN.
Dtmf-relay h245-alpha
CUCM Service Parameters --> Call Park Reversion Timer

23. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Re-enter the mgcp bind control and mgcp bind media commands.
Call Simulator. You can use to validate path from router to the PSTN.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

24. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Call-manager-fallback or telephony-service mode SRST
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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

25. An MGCP gateway serving as an SRST router requires what?
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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. 'If you want to make changes to any softkeys where do you do it?
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
(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
Apply it to the ephone.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

27. What does the Transfer On-hook Enabled Service Parameter do?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
#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
Allows you to transfer by only pressing the Transfer button once.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

28. 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.
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 PARAMETER> Automated Alternate Routing Enable > True
Put them in a route list.

29. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
'Use before the ... so XXXX
In CUCM - configure CFUR to point to it's E164 number.
TRUE

30. When can you not use a Standard Local Route Group?
Automatically configures the MGCP GW for you.
When configuring TEHO.

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

31. 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.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

32. What does Display-IE do?
Sends the Calling Name.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Service Parameter --> Block OffNet To OffNet Transfer --> True
In the CUCM 7.0.1 Release Notes ... search for restore.

33. What is Mobile Voice Access?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Bandwidth

34. How do you configure 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)
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.
24kb/s
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

35. How do you enable AAR system wide?
Re-enter the mgcp bind control and mgcp bind media commands.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Precede the # with a > ... so 9011*>#

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

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

37. How do you use an ephone template?
Apply it to the ephone.
Configure it on the route group through the route list - then it will be local to the route list.
Automatically configures the MGCP GW for you.
Call forwarding between voip to voip (when CUBE is in play)

38. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Outbound dial-peers
voice register pool|and|voice register dn
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

39. How do you create a trunk on the switch side?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

40. How do you set the inter-digit timeout for SIP phones in CME?
Automatically configures the MGCP GW for you.
(config)#voice register dialplan
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

41. 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

42. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> Call Park Reversion Timer
CUCM OS Administration Settings --> NTP Servers
Via the voice hunt-group parallel command
Phone number followed by domain name.|i.e. 3006@ipxcme.com

43. Describe how you configure SIP URI functionality.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Ccm-manager music-on-hold

SERVICE PARAMETER> Automated Alternate Routing Enable > True

44. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
8kb/s
Ccm-manager music-on-hold
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)
Sh ccm-manager

45. How do you allow the Calling Name to be sent to the PSTN on a router?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
(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
Max-dn|max-ephone|ip source-address
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

46. 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 .)
It's best to strip digits at the voice port.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Service Parameter --> Block OffNet To OffNet Transfer --> True

47. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Debug isdn q931
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

48. What terminology translates to SRST?
Reroute when there is a WAN Outage.
Single Number Reach (Mobile Connect)
Outbound dial-peers
SIP Route Pattern over a SIP Trunk.

49. How do you setup AutoRegistration in CUCM?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Master/Slave relationship. CUCM controls it.
#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

50. How much bandwidth does a G.729 call including layer 3 require?
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
Sh ccm-manager
24kb/s
SERVICE PARAMETER> Automated Alternate Routing Enable > True