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 call-forward pattern used for?
CUCM OS Administration Settings --> NTP Servers
Call forwarding between voip to voip (when CUBE is in play)
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

2. Describe how you configure SIP URI functionality.
Bottom up - to prevent glare.
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

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

3. What is Phone NTP Reference used for?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
In the CUCM 7.0.1 Release Notes ... search for restore.
(config)#voice register dialplan
To notify SIP Phones of NTP

4. What would force you to use telephony-service to configure SRST?
Reroute when there is a WAN Outage.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

5. '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
Assign a logout-profile to the ephone.
...
1 ... this is not optional!

6. What's the best way to perform digit manipulation on a route group?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
TRUE
Configure it on the route group through the route list - then it will be local to the route list.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

7. What types of digit manipulation can you perform at the route pattern?

It's best to strip digits at the voice port.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

8. What does Display-IE do?
Sends the Calling Name.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
When they are explicitly matched in a destination-pattern in a dial-peer.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

9. How do you configure DHCP in IOS?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
1 ... this is not optional!

10. What are the base telephony-service commands for CME?
voice translation-profile|and|voice translation-rule
(config)#sh cdp neigh detail
#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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

11. How is NTP sych setup in CUCM?
24kb/s
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
In the CUCM 7.0.1 Release Notes ... search for restore.

12. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
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
voice translation-profile|and|voice translation-rule
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
SIP Dial Rules

13. 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.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Bottom up - to prevent glare.
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)

14. On an H323 GW - how do you adjust the timers for redundancy hunting?
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
#after-hours block pattern
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

15. 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?
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)
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
'Service Parameters --> Auto Answer Timer
When they are explicitly matched in a destination-pattern in a dial-peer.

16. On an MGCP GW - how could you see the primary and backup CUCM servers?
sh ephone reg|and|debug voip dialpeer
Show ccm-manager
(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
It's best to strip digits at the voice port.

17. What commands are needed to configure the voice register pool in CME?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#after-hours block pattern
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

18. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Show ccm-manager
Bottom up - to prevent glare.
Bandwidth
24kb/s

19. How do you see the details of calls coming in and out of the PRI?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Debug isdn q931
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
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

20. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Reroute when here is WAN congestion.
Sends the Calling Name.
Ccm-manager music-on-hold

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

22. When are digits stripped in a gateway?
Show ccm-manager
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.
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
When they are explicitly matched in a destination-pattern in a dial-peer.

23. In Gatekeeper CAC how do you restrict a specific endpoint?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
#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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

24. When setting up SIP URI where do you configure the CUCM's domain name?'
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
(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

25. How do you set the Call Park Reversion Timer?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Device Pool Locations
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
CUCM Service Parameters --> Call Park Reversion Timer

26. With the gw-priority command - does higher or lower priority take precedence?
Apply voice-class codec
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
Higher
(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

27. Maximum Wait Time for Desk Pickup?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
'Use before the ... so XXXX
#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

28. How do you configure AAR?
Debug isdn q931
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.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

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

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
It's best to strip digits at the voice port.
Dial-peers

30. Describe the relationship between route patterns and end devices.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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.
Single Number Reach (Mobile Connect)

31. What does ccm-manager config server [IP]</ip> do?
The Called/Calling Transformations are superceded.
...
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.
Automatically configures the MGCP GW for you.

32. What terminology translates to SRST?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
(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
Reroute when there is a WAN Outage.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

33. What should you configure before entering auto qos?
When configuring TEHO.
...
Call Simulator. You can use to validate path from router to the PSTN.
Bandwidth

34. 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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

35. When can you not use a Standard Local Route Group?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
When configuring TEHO.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Outbound dial-peers

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

37. How do you create a trunk on the switch side?
'Use before the ... so XXXX
24kb/s
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Assign a logout-profile to the ephone.

38. How do you configure a gateway to register with gatekeeper?
#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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Sends the Calling Name.
At the CLI: utils ntp status

39. What are the basic SCCP Commands fro telephony-service in CUCME?
Reroute when here is WAN congestion.
'Use before the ... so XXXX
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

40. How do you use an ephone template?
Apply it to the ephone.
Re-enter the mgcp bind control and mgcp bind media commands.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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

41. An MGCP gateway serving as an SRST router requires what?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
#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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

42. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Matches any length dialed number and truncates it to 4 digits.
'Use before the ... so XXXX

43. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
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
The Called/Calling Transformations are superceded.
Auto Call Pickup Enabled
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

44. 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.
The Called/Calling Transformations are superceded.
sh ephone reg|and|debug voip dialpeer
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

45. How do you set up redundancy on outbound dial-peers on an H323 gateway?
(config)#sh cdp neigh detail
Reroute when here is WAN congestion.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

46. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
To enable two-stage dialing.
#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
#test voice translation rule 1 <input to test>
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

47. On the RDP What is the Rerouting CSS used for?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Automatically configures the MGCP GW for you.
...
Single Number Reach (Mobile Connect)

48. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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

Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

49. How do you configure SRST?
#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
#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
Call-manager-fallback or telephony-service mode SRST
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

50. 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?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Higher
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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 .)