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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. What is SIP URI?
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)
The name configuration field in ephone-dn and voice register dn
Phone number followed by domain name.|i.e. 3006@ipxcme.com
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

2. 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
...
Single Number Reach (Mobile Connect)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

3. What is call-forward pattern used for?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Call forwarding between voip to voip (when CUBE is in play)
In the CUCM 7.0.1 Release Notes ... search for restore.
Sh ccm-manager

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

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5. How do you allow H323 calls to be preserved should the primary H323 GW fail?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#test voice translation rule 1 <input to test>
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 .)

6. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Service Parameters --> Mobile Voice Access Number
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Put them in a route list.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

7. What does rule 1 /^.*(....$)/ /1/ do?
SIP Dial Rules
When configuring TEHO.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Matches any length dialed number and truncates it to 4 digits.

8. How do you allow the Calling Name to be sent to the PSTN on a router?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Bottom up - to prevent glare.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

9. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Auto Call Pickup Enabled
The name configuration field in ephone-dn and voice register dn
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

10. What would force you to use telephony-service to configure SRST?
To enable two-stage dialing.

1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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.

11. How do you enable Extension Mobility for a device in CME?
Assign a logout-profile to the ephone.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Precede the # with a > ... so 9011*>#
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

12. What are the 3 mandatory commands within call-manager-fallback?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Show ccm-manager
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.
Max-dn|max-ephone|ip source-address

13. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SIP Route Pattern over a SIP Trunk.

14. How much bandwidth does a G.729 call including layer 3 require?
(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
24kb/s
Mobile Voice Access

15. What are the basic SCCP Commands fro telephony-service in CUCME?
Debug ephone moh
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
#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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

16. What are the commands to configure SIP phones in CME?
Reroute when there is a WAN Outage.
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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
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

17. How do you setup AutoRegistration in CUCM?

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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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 ....

18. 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).
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

19. How do you configure a gateway to register with gatekeeper?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#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
Device Pool Locations
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

20. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Apply voice-class codec
Configure it on the route group through the route list - then it will be local to the route list.

21. An MGCP gateway serving as an SRST router requires what?
Allows you to transfer by only pressing the Transfer button once.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
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

22. What are the commands to create the L3 routing interface for VLANS (SVI)?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.

23. How can you confirm the MGCP GW is registered to CUCM - in IOS?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Reroute when there is a WAN Outage.
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.
Sh ccm-manager

24. When are digits stripped in a gateway?
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
(config)#voice register dialplan
When they are explicitly matched in a destination-pattern in a dial-peer.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

25. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Master/Slave relationship. CUCM controls it.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
The Called/Calling Transformations are superceded.

26. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
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.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Outbound dial-peers

27. What are the commands to configure a T1/E1 PRI?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
(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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

28. How do you configure phone ports on a 3750?
#test voice translation rule 1 <input to test>
Matches any length dialed number and truncates it to 4 digits.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Allows you to transfer by only pressing the Transfer button once.

29. When setting up SIP URI where do you configure the CUCM's domain name?'
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
8kb/s
Debug ephone moh
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

30. Does CUCM support RSVP natively?
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.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Dial-peers

31. What are the commands to manually configure an MGCP gateway?
Matches any length dialed number and truncates it to 4 digits.
#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
Sh ip rsvp reservation||sh sccp connections
#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

32. How do you prioritize route groups?
Put them in a route list.
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.
...
Service Parameters --> Mobile Voice Access Number

33. How do you see the details of calls coming in and out of the PRI?
Assign SIP Dial Rules
sh ephone reg|and|debug voip dialpeer
Debug isdn q931
Configure it on the route group through the route list - then it will be local to the route list.

34. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
...
Top Down means that channel 1 will be the first channel used to place outgoing calls.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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

35. What is the full E164 format?
8kb/s
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

36. What are the base telephony-service commands for CME?
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
#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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

37. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
...
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

38. What are the basic ephone-dn and ephone commands?
8kb/s
(config)#voice register dialplan
Dtmf-relay h245-alpha
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

39. How do you enable AAR?
...
(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> Automated Alternate Routing Enable > True
Assign a logout-profile to the ephone.

40. What is a best practice for digit manipulation - in regards to H323 GWs?
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
...
Apply voice-class codec
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

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

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42. What terminology translates to AAR?
Reroute when here is WAN congestion.
At the CLI: utils ntp status
CUCM Service Parameters --> Call Park Reversion Timer
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

43. 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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
...
(config)#voice register dialplan

44. What is the bit rate for a G.729 call excluding layer 2?
Reroute when there is a WAN Outage.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
#after-hours block pattern
8kb/s

45. 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?
CUCM Service Parameters --> Call Park Reversion Timer
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)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

46. 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.
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
#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. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Mobile Voice Access
(config)#voice register dialplan
Re-enter the mgcp bind control and mgcp bind media commands.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

48. What dtmf-relay type do you use for an H323 GW?
Mobile Connect
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
Assign SIP Dial Rules

49. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Configure it on the route group through the route list - then it will be local to the route list.
'Service Parameters --> Auto Answer Timer

50. What's the difference between AAR and SRST?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).