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CCIE Voice Test

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Answer 50 questions in 15 minutes.
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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. Name 2 commands to verify RSVP functionality.
...
Sh ip rsvp reservation||sh sccp connections
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
...
Device Pool Locations
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. When can you not use a Standard Local Route Group?
In CUCM - configure CFUR to point to it's E164 number.
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 configuring TEHO.
voice register pool|and|voice register dn

4. SNR is also known as?
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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.

5. What must you do for a BACD script to work on a CME router?
Re-enter the mgcp bind control and mgcp bind media commands.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Assign SIP Dial Rules

6. What would force you to use telephony-service to configure SRST?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
#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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

7. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

8. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
#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
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.
Higher

9. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
When they are explicitly matched in a destination-pattern in a dial-peer.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Mobile Voice Access
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

10. What is a best practice for digit manipulation - in regards to H323 GWs?
#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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Precede the # with a > ... so 9011*>#

11. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
It's best to strip digits at the voice port.
Call-manager-fallback or telephony-service mode SRST
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
TRUE

12. How do you get around relying on DNS for your CUCMs?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

13. How do you prevent H323 caller-id updates to CUCM
#test voice translation rule 1 <input to test>
#voice service voip| #no supplementary-service h225-notify cid-update
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Re-enter the mgcp bind control and mgcp bind media commands.

14. What does KPML do?
#after-hours block pattern
Precede the # with a > ... so 9011*>#
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

15. How do you verify that NTP is working on the CUCM server?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
At the CLI: utils ntp status
SERVICE PARAMETER> Automated Alternate Routing Enable > True
24kb/s

16. What's the difference between AAR and SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
(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
The name configuration field in ephone-dn and voice register dn
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

17. How do you allow the Calling Name to be sent to the PSTN on a router?
Dtmf-relay h245-alpha
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

18. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
Debug ephone moh
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Master/Slave relationship. CUCM controls it.

19. On the RDP What is the CSS used for?
Bandwidth
Mobile Voice Access
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

20. What does Display-IE do?
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
Sends the Calling Name.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

21. What are the basic SCCP Commands fro telephony-service in CUCME?
Sh ip rsvp reservation||sh sccp connections
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:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
When configuring TEHO.

22. How do you configure a gateway to register with gatekeeper?
(config)#sh cdp neigh detail
#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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Single Number Reach (Mobile Connect)

23. What are the commands to configure a SIP phone in CUCME?
Apply it to the ephone.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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
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

24. What are the commands to configure NTP in IOS?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
#test voice translation rule 1 <input to test>
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

25. When do you use translate called? Translate calling?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

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

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27. Where do you use VIA zone?
In the CUCM 7.0.1 Release Notes ... search for restore.
The name configuration field in ephone-dn and voice register dn
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
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

28. What kind of relationship does an MGCP gateway have with CUCM?
Master/Slave relationship. CUCM controls it.
At the CLI: utils ntp status
(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
Allows you to transfer by only pressing the Transfer button once.

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

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30. How would you enable security on a GK?
...
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

31. Calls coming from CUCM to PSTN need what?
Call Simulator. You can use to validate path from router to the PSTN.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Outbound dial-peers

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

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33. How do you prevent toll fraud on CME?
'Use before the ... so XXXX
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 ....
When multiple sites use the same route pattern - do your digit manipulation on a route list.
The name configuration field in ephone-dn and voice register dn

34. How do you prioritize route groups?
Dial-peers
#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
(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
Put them in a route list.

35. What's the best way to perform digit manipulation on a route group?
Configure it on the route group through the route list - then it will be local to the route list.
In CUCM - configure CFUR to point to it's E164 number.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#test voice translation rule 1 <input to test>

36. How can you confirm the MGCP GW is registered to CUCM - in IOS?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
#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
(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
Sh ccm-manager

37. How do you configure an MGCP GW? (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
(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
Put them in a route list.
IP Voice Media Streaming App

38. How do you use an ephone template?
Master/Slave relationship. CUCM controls it.
SIP Dial Rules
At the CLI: utils ntp status
Apply it to the ephone.

39. How do you configure AAR?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Mobile Connect
Assign SIP Dial Rules
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

40. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Debug ephone moh
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)
Call forwarding between voip to voip (when CUBE is in play)
Auto Call Pickup Enabled

41. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
In CUCM - configure CFUR to point to it's E164 number.

42. 'If you want to make changes to any softkeys where do you do it?

Dtmf-relay h245-alpha
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

43. What are the commands to configure a T1/E1 PRI?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
(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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Debug ephone moh

44. On an MGCP GW - how could you see the primary and backup CUCM servers?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Sh ccm-manager
Show ccm-manager

45. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
When they are explicitly matched in a destination-pattern in a dial-peer.
To notify SIP Phones of NTP
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)
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

46. On the RDP What is the Rerouting CSS used for?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Via the voice hunt-group parallel command
Single Number Reach (Mobile Connect)
Debug isdn q931

47. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
In CUCM - configure CFUR to point to it's E164 number.
Call Simulator. You can use to validate path from router to the PSTN.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

48. How do you block calls under call-manager-fallback?
CUCM Service Parameters --> Call Park Reversion Timer
#after-hours block pattern
Reroute when here is WAN congestion.
(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

49. What does the Transfer On-hook Enabled Service Parameter do?
CUCM OS Administration Settings --> NTP Servers
Allows you to transfer by only pressing the Transfer button once.
Call-manager-fallback or telephony-service mode SRST
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

50. When using drop-through-option What is the max number of huntgroups?
Precede the # with a > ... so 9011*>#
1 ... this is not optional!
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
When they are explicitly matched in a destination-pattern in a dial-peer.

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CCIE Voice Test

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