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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. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
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.
#test voice translation rule 1 <input to test>
Mobile Voice Access

2. What's the best way to do digit manipulation on an IOS gateway?
Precede the # with a > ... so 9011*>#
voice translation-profile|and|voice translation-rule
Allows you to transfer by only pressing the Transfer button once.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

3. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Sends the Calling Name.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
voice register pool|and|voice register dn

4. Where can you assign the AAR Group?
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.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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)

5. 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?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
...
Matches any length dialed number and truncates it to 4 digits.
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)

6. Calls coming from CUCM to PSTN need what?
'Service Parameters --> Auto Answer Timer
#after-hours block pattern
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
Outbound dial-peers

7. When do you use translate called? Translate calling?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
SIP Dial Rules
CUCM Service Parameters --> Call Park Reversion Timer
Auto Call Pickup Enabled

8. What are the basic SCCP Commands fro telephony-service in CUCME?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

9. What types of digit manipulation can you perform at the route pattern?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
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.
Show ccm-manager
...

10. '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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#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
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. What are the commands to manually configure an MGCP gateway?
#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
IP Voice Media Streaming App
To enable two-stage dialing.
Call Simulator. You can use to validate path from router to the PSTN.

12. 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
Mobile Voice Access
#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
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
...

13. How do you configure phone ports on a 3750?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
'Service Parameters --> Auto Answer Timer
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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. How do you test a Voice Translation Rule?

#test voice translation rule 1 <input to test>
TRUE
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

15. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
In the CUCM 7.0.1 Release Notes ... search for restore.
Max-dn|max-ephone|ip source-address
Allows you to transfer by only pressing the Transfer button once.

16. What are the commands to configure SRST in fallback?
Master/Slave relationship. CUCM controls it.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
...
At the CLI: utils ntp status

17. 'If you're not getting a DHCP address from CUCM what then?
Service Parameters --> Mobile Voice Access Number
SIP Dial Rules
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

18. What are two caveats to using the ccm-manager config server</ip> command?
#test voice translation rule 1 <input to test>
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

19. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

20. What CUCM services should you activate?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Precede the # with a > ... so 9011*>#
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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

21. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
When they are explicitly matched in a destination-pattern in a dial-peer.
Sh ccm-manager

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

23. Does CUCM support RSVP natively?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Matches any length dialed number and truncates it to 4 digits.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Show ccm-manager

24. What terminology translates to SRST?
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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Debug isdn q931
Reroute when there is a WAN Outage.

25. What does Display-IE do?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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
Device Pool Locations
Sends the Calling Name.

26. How do you configure a SIP Trunk? (router side)
Assign a logout-profile to the ephone.
...
(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.

27. How do you enable AAR system wide?
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
Call forwarding between voip to voip (when CUBE is in play)
To notify SIP Phones of NTP
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

28. What commands are needed to configure the voice register pool in CME?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
Bandwidth

29. How do you set up redundancy on outbound dial-peers on an H323 gateway?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
To notify SIP Phones of NTP
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

30. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Service Parameters --> Mobile Voice Access Number
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

31. 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
Service Parameters --> Mobile Voice Access Number
'Use before the ... so XXXX
Sends the Calling Name.

32. How would you verify that DHCP is working in IOS?
'Use before the ... so XXXX
(config)#sh cdp neigh detail
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
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)

33. What is Phone NTP Reference used for?
voice translation-profile|and|voice translation-rule
To notify SIP Phones of NTP
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

34. How do you configure an MGCP GW? (router side)
(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

#after-hours block pattern
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

35. How do you prevent toll fraud on CME?
Apply voice-class codec
Phone number followed by domain name.|i.e. 3006@ipxcme.com

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 ....

36. How do you enable Extension Mobility for a device in CME?
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 .)
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
(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
Assign a logout-profile to the ephone.

37. In Gatekeeper CAC how do you restrict a specific endpoint?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Master/Slave relationship. CUCM controls it.

38. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Reroute when there is a WAN Outage.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

39. 'How do you inform a SIP phone of NTP information?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
#voice service voip| #no supplementary-service h225-notify cid-update
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Bandwidth

40. 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).
Dial-peers

Assign SIP Dial Rules

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

42. What are the 3 mandatory commands within call-manager-fallback?
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
SIP Dial Rules
(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
Max-dn|max-ephone|ip source-address

43. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Max-dn|max-ephone|ip source-address
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.

44. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
sh ephone reg|and|debug voip dialpeer
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
SIP Dial Rules

45. What are the commands to configure a MGCP Gateway? (router)
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.
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
'Service Parameters --> Auto Answer Timer
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

46. When do you do digit manipulation at the route pattern as opposed to the route list?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Show ccm-manager
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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)

47. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?

It's best to strip digits at the voice port.
Assign a logout-profile to the ephone.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

48. How do do configure TEHO?
Apply it to the ephone.
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
Service Parameter --> Block OffNet To OffNet Transfer --> True
(config)#sh cdp neigh detail

49. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
TRUE
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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

50. How do you prioritize route groups?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Put them in a route list.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Ccm-manager music-on-hold