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. With the gw-priority command - does higher or lower priority take precedence?
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
Higher
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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

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 --> Block OffNet To OffNet Transfer --> True
...
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

3. 'If you're not getting a DHCP address from CUCM what then?
Configure it on the route group through the route list - then it will be local to the route list.
#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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Higher

4. What is the full E164 format?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
The name configuration field in ephone-dn and voice register dn
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

5. How do you enable Extension Mobility for a device in CME?
Mobile Voice Access
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Device Pool Locations
Assign a logout-profile to the ephone.

6. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
#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
To notify SIP Phones of NTP
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

7. Name 2 commands to verify RSVP functionality.
'Use before the ... so XXXX
Matches any length dialed number and truncates it to 4 digits.
Sh ip rsvp reservation||sh sccp connections
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

8. What does Display-IE do?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Sends the Calling Name.
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

9. How do you verify that NTP is working on the CUCM server?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
At the CLI: utils ntp status
Assign SIP Dial Rules
Max-dn|max-ephone|ip source-address

10. What's the difference between AAR and SRST?

AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Matches any length dialed number and truncates it to 4 digits.

11. How do you create a trunk on the router side?
The Called/Calling Transformations are superceded.
In the CUCM 7.0.1 Release Notes ... search for restore.
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

12. How do you create a trunk on the switch side?
#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
Device Pool Locations
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
sh ephone reg|and|debug voip dialpeer

13. How do you use an ephone template?
To notify SIP Phones of NTP
Apply it to the ephone.
Debug ephone moh
Via the voice hunt-group parallel command

14. When can you not use a Standard Local Route Group?
Debug isdn q931
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
When configuring TEHO.

15. 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
...
Ccm-manager music-on-hold
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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

16. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
'Use before the ... so XXXX
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.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

17. 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
Reroute when here is WAN congestion.
...
CUCM OS Administration Settings --> NTP Servers

18. Where can you assign the AAR Group?
In CUCM - configure CFUR to point to it's E164 number.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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

19. What does an H323 GW require that MGCP GWs do not?
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
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
To notify SIP Phones of NTP
Dial-peers

20. How do you enable AAR system wide?
Debug isdn q931
sh ephone reg|and|debug voip dialpeer
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

21. How do you configure AAR?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Re-enter the mgcp bind control and mgcp bind media commands.
Phone number followed by domain name.|i.e. 3006@ipxcme.com

22. What must you do for a BACD script to work on a CME router?
sh ephone reg|and|debug voip dialpeer
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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)

23. What are the basic SCCP Commands fro telephony-service in CUCME?
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)
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(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
Matches any length dialed number and truncates it to 4 digits.

24. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Assign SIP Dial Rules
#voice service voip| #no supplementary-service h225-notify cid-update
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Service Parameters --> Mobile Voice Access Number

25. What does rule 1 /^.*(....$)/ /1/ do?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Matches any length dialed number and truncates it to 4 digits.

26. Privacy is enabled system-wide in CUCM by default. (T or F)
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
TRUE
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

27. What is the bit rate for a G.729 call excluding layer 2?

8kb/s
voice translation-profile|and|voice translation-rule
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

28. How do you configure CUBE?

29. What dtmf-relay type do you use for an H323 GW?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Dtmf-relay h245-alpha

30. How do you set the Call Park Reversion Timer?
#after-hours block pattern
Service Parameter --> Block OffNet To OffNet Transfer --> True
(config)#voice register dialplan
CUCM Service Parameters --> Call Park Reversion Timer

31. How do you configure class of service (CoS) in CUCM? CME?
SIP Dial Rules
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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

32. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
The name configuration field in ephone-dn and voice register dn

33. What kind of relationship does an MGCP gateway have with CUCM?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Master/Slave relationship. CUCM controls it.
'Service Parameters --> Auto Answer Timer
When configuring TEHO.

34. 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.
Allows you to transfer by only pressing the Transfer button once.
...
...

35. What terminology translates to SRST?
Reroute when there is a WAN Outage.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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

36. How do you place SCCP and SIP phones into a single huntgroup?
CUCM Service Parameters --> Call Park Reversion Timer
#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
Dial-peers
Via the voice hunt-group parallel command

37. Is the order of the MRGs in an MRGL significant?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
...
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Auto Call Pickup Enabled

38. What CUCM services should you activate?
Configure it on the route group through the route list - then it will be local to the route list.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
In the CUCM 7.0.1 Release Notes ... search for restore.

39. How do you configure a gateway to register with gatekeeper?
voice register pool|and|voice register dn
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Auto Call Pickup Enabled
#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

40. How is NTP sych setup in CUCM?
Debug isdn q931
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.
CUCM OS Administration Settings --> NTP Servers
Reroute when here is WAN congestion.

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

42. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Ccm-manager music-on-hold
In the CUCM 7.0.1 Release Notes ... search for restore.
Mobile Voice Access
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

43. What are the commands to configure NTP in IOS?
Device Pool Locations
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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)

44. What does the Transfer On-hook Enabled Service Parameter do?
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Allows you to transfer by only pressing the Transfer button once.

45. On the RDP What is the CSS used for?
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
Mobile Voice Access
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

46. How do you prevent toll fraud on CME?
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.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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 ....
TRUE

47. How do you setup AutoRegistration in CUCM?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
In CUCM - configure CFUR to point to it's E164 number.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
#after-hours block pattern

48. How do you ensure that G.711 only is used?
Mobile Connect
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Call-manager-fallback or telephony-service mode SRST
sh ephone reg|and|debug voip dialpeer

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

50. What are the commands to configure a T1/E1 PRI?
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
(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
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)