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 Service Parameter to allow the phone that is picking ip to auto answer?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Service Parameters --> Mobile Voice Access Number
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Auto Call Pickup Enabled

2. How do you change modes in voice register global?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
SIP Dial Rules
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

3. '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
TRUE
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
...
#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

4. What does the Transfer On-hook Enabled Service Parameter do?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Configure it on the route group through the route list - then it will be local to the route list.
Allows you to transfer by only pressing the Transfer button once.
Mobile Voice Access

5. When do you use translate called? Translate calling?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
At the CLI: utils ntp status
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
In the CUCM 7.0.1 Release Notes ... search for restore.

6. 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

7. How do you configure class of service (CoS) in CUCM? CME?
Automatically configures the MGCP GW for you.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Debug ephone moh

8. 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?
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
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)
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
TRUE

9. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Service Parameters --> Mobile Voice Access Number
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Re-enter the mgcp bind control and mgcp bind media commands.
On CUCM it's identical to adding an H323 GW.

10. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
(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
Assign a logout-profile to the ephone.
(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

11. How do you enable AAR system wide?
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 Service Parameters --> Automated Alternate Routing Enable --> True
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

12. How do you configure a SIP Trunk? (router side)
(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
To notify SIP Phones of NTP
Sends the Calling Name.
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

13. How would you enable security on a GK?
When configuring TEHO.
#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
8kb/s
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

14. What are the basic ephone-dn and ephone commands?
Max-dn|max-ephone|ip source-address
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
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
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

15. 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
voice translation-profile|and|voice translation-rule
When they are explicitly matched in a destination-pattern in a dial-peer.
Master/Slave relationship. CUCM controls it.

16. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
When configuring TEHO.
Debug ephone moh
Top Down means that channel 1 will be the first channel used to place outgoing calls.

17. What are the commands to configure SIP phones in 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
Apply voice-class codec

18. What are the steps to integrate CUPS with CUCM?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
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
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)

19. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

24kb/s

20. Name 4 useful show commands for active calls.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
On CUCM it's identical to adding an H323 GW.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
#after-hours block pattern

21. How do you ensure that G.711 only is used?
Sh ccm-manager
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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
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

22. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
#test voice translation rule 1 <input to test>

(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
'Use before the ... so XXXX

23. How do you set the Call Park Reversion Timer?
Dtmf-relay h245-alpha
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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
CUCM Service Parameters --> Call Park Reversion Timer

24. How do you configure AAR?
Bandwidth
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
CUCM OS Administration Settings --> NTP Servers

25. How do you create a trunk on the switch side?
(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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

26. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Service Parameters --> Mobile Voice Access Number
At the CLI: utils ntp status
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

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

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

28. On the RDP What is the CSS used for?
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Mobile Voice Access
#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

29. What are the commands to configure NTP in IOS?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

30. How do you see the details of calls coming in and out of the PRI?
#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
Debug isdn q931
Precede the # with a > ... so 9011*>#
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

31. How do you prevent toll fraud on CME?
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 .)
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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 ....
...

32. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
CUCM Service Parameters --> Call Park Reversion Timer
Show ccm-manager
SIP Dial Rules
Max-dn|max-ephone|ip source-address

33. How do you configure a gateway to register with gatekeeper?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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
#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
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.

34. When using drop-through-option What is the max number of huntgroups?
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
Apply it to the ephone.
1 ... this is not optional!
SIP Route Pattern over a SIP Trunk.

35. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
In the CUCM 7.0.1 Release Notes ... search for restore.
Assign a logout-profile to the ephone.

36. 'If you want to make changes to any softkeys where do you do it?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
(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
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)
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

37. 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.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Reroute when here is WAN congestion.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

38. What must you do for a BACD script to work on a CME router?

To notify SIP Phones of NTP
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

39. On an H323 GW - how do you adjust the timers for redundancy hunting?
Dial-peers
Matches any length dialed number and truncates it to 4 digits.
Assign SIP Dial Rules
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

40. What's the best way to perform digit manipulation on a route group?
At the CLI: utils ntp status
Configure it on the route group through the route list - then it will be local to the route list.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
#after-hours block pattern

41. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
1 ... this is not optional!
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Dial-peers
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

42. 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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
'Use before the ... so XXXX
Call Simulator. You can use to validate path from router to the PSTN.
...

43. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
(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
Max-dn|max-ephone|ip source-address
Phone number followed by domain name.|i.e. 3006@ipxcme.com

44. What is call-forward pattern used for?
'Service Parameters --> Auto Answer Timer
Call forwarding between voip to voip (when CUBE is in play)
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 ....
voice register pool|and|voice register dn

45. Is the + character supported on a VOIP dial-peer?

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

46. How do you block calls under call-manager-fallback?
'Use before the ... so XXXX
#after-hours block pattern
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
#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

47. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.

Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
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.

48. What does ccm-manager config server [IP]</ip> do?
Top Down means that channel 1 will be the first channel used to place outgoing calls.

Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Automatically configures the MGCP GW for you.

49. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Ccm-manager music-on-hold
#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
To notify SIP Phones of NTP
#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

50. How do you allow the Calling Name to be sent to the PSTN on a router?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
CUCM OS Administration Settings --> NTP Servers
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie