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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. Where do you use VIA zone?
#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
Ccm-manager music-on-hold
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
(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

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
...
CUCM Service Parameters --> Call Park Reversion Timer
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

3. How do you verify that NTP is working on the CUCM server?

CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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.

4. How do you configure SRST?
SIP Route Pattern over a SIP Trunk.
Call-manager-fallback or telephony-service mode SRST
On CUCM it's identical to adding an H323 GW.
SIP Dial Rules

5. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE

#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Reroute when here is WAN congestion.

6. How do you change modes in voice register global?
#test voice translation rule 1 <input to test>
CUCM Service Parameters --> Call Park Reversion Timer
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Call-manager-fallback or telephony-service mode SRST

7. What does Display-IE do?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
Sends the Calling Name.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

8. How do you place SCCP and SIP phones into a single huntgroup?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

#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
Via the voice hunt-group parallel command

9. What are the basic SCCP Commands fro telephony-service in CUCME?
Auto Call Pickup Enabled
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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

10. What is the Service Parameter to allow the phone that is picking ip to auto answer?
1 ... this is not optional!
(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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Auto Call Pickup Enabled

11. Maximum Wait Time for Desk Pickup?
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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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.
Sh ip rsvp reservation||sh sccp connections

12. What kind of relationship does an MGCP gateway have with CUCM?
Sh ip rsvp reservation||sh sccp connections
Master/Slave relationship. CUCM controls it.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

13. What's the best way to perform digit manipulation on a route group?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Configure it on the route group through the route list - then it will be local to the route list.
Outbound dial-peers
Sends the Calling Name.

14. How do you allow the Calling Name to be sent to the PSTN on a router?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
...

15. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
SIP Route Pattern over a SIP Trunk.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

16. What is a best practice for digit manipulation - in regards to H323 GWs?
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Put them in a route list.

17. What does the Transfer On-hook Enabled Service Parameter do?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Allows you to transfer by only pressing the Transfer button once.
sh ephone reg|and|debug voip dialpeer
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

18. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
It's best to strip digits at the voice port.
Higher
Sends the Calling Name.

19. How do you support multiple codecs on a dialpeer?

'Use before the ... so XXXX
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Apply voice-class codec

20. 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?
Auto Call Pickup Enabled
Assign a logout-profile to the ephone.
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)
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 ....

21. What is CSIM?
Call Simulator. You can use to validate path from router to the PSTN.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

22. What are the commands to configure an H323 GW?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
#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
(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)

23. What is the full E164 format?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
SIP Route Pattern over a SIP Trunk.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

24. An MGCP gateway serving as an SRST router requires what?
CUCM OS Administration Settings --> NTP Servers
1 ... this is not optional!
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

25. How do you configure DHCP in IOS?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
(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
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

26. How do you configure phone ports on an ESW?
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
Via the voice hunt-group parallel command
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
1 ... this is not optional!

27. When can you not use a Standard Local Route Group?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
When configuring TEHO.
'Use before the ... so XXXX
(config)#voice register dialplan

28. 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 ....

Reroute when there is a WAN Outage.
#after-hours block pattern

29. How do you prevent H323 caller-id updates to CUCM
#voice service voip| #no supplementary-service h225-notify cid-update
The Called/Calling Transformations are superceded.
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
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

30. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Automatically configures the MGCP GW for you.
(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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

31. How do you enable Extension Mobility for a device in CME?
(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
Assign a logout-profile to the ephone.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

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

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33. When are digits stripped in a gateway?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Via the voice hunt-group parallel command
When they are explicitly matched in a destination-pattern in a dial-peer.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

34. What are the commands to create the L3 routing interface for VLANS (SVI)?
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

35. How would you verify that DHCP is working in IOS?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(config)#sh cdp neigh detail
When they are explicitly matched in a destination-pattern in a dial-peer.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

36. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Configure it on the route group through the route list - then it will be local to the route list.
(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
Bottom up - to prevent glare.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

37. What types of digit manipulation can you perform at the route pattern?
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
CUCM OS Administration Settings --> NTP Servers
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
TRUE

38. What are the commands to configure a T1/E1 PRI?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
(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
Service Parameter --> Block OffNet To OffNet Transfer --> True
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

39. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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

40. Which takes precedence Device Locations or Device Pool Locations?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Device Pool Locations
Allows you to transfer by only pressing the Transfer button once.

41. Describe how you configure SIP URI functionality.
Max-dn|max-ephone|ip source-address
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

42. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?

Mobile Connect
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

43. How do you configure class of service (CoS) in CUCM? CME?
(config)#sh cdp neigh detail
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
#voice service voip| #no supplementary-service h225-notify cid-update
sh ephone reg|and|debug voip dialpeer

44. 'If you want to make changes to any softkeys where do you do it?
Show ccm-manager
voice register pool|and|voice register dn
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
'Use before the ... so XXXX

45. How do you get around relying on DNS for your CUCMs?
Configure it on the route group through the route list - then it will be local to the route list.
Matches any length dialed number and truncates it to 4 digits.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
SERVICE PARAMETER> Automated Alternate Routing Enable > True

46. 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
Dial-peers
Sh ccm-manager

47. How do you disable KPML?
Assign SIP Dial Rules
sh ephone reg|and|debug voip dialpeer
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Call Simulator. You can use to validate path from router to the PSTN.

48. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
#test voice translation rule 1 <input to test>
Re-enter the mgcp bind control and mgcp bind media commands.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
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 ....

49. How do you prevent toll fraud on CUCM?
It's best to strip digits at the voice port.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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.
When multiple sites use the same route pattern - do your digit manipulation on a route list.

50. How do you configure a gateway to register with gatekeeper?
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 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
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
Service Parameter --> Block OffNet To OffNet Transfer --> True