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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. When can you not use a Standard Local Route Group?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
When configuring TEHO.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

2. What types of digit manipulation can you perform at the route pattern?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
(config)#sh cdp neigh detail

3. What's the difference between AAR and SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
When they are explicitly matched in a destination-pattern in a dial-peer.
'Use before the ... so XXXX
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

4. How do you configure CUCM redundancy on an H323 gateway?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
CUCM OS Administration Settings --> NTP Servers
When configuring TEHO.
#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

5. How do you place SCCP and SIP phones into a single huntgroup?
24kb/s
Reroute when here is WAN congestion.
Via the voice hunt-group parallel command
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

6. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Max-dn|max-ephone|ip source-address
voice register pool|and|voice register dn
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

7. Name 4 useful show commands for active calls.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#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
voice translation-profile|and|voice translation-rule
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

8. How do you allow the Calling Name to be sent to the PSTN on a router?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
1 ... this is not optional!
To enable two-stage dialing.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

9. 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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Outbound dial-peers
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

10. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Sh ccm-manager
SIP Dial Rules
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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.

11. Is the order of the MRGs in an MRGL significant?
Re-enter the mgcp bind control and mgcp bind media commands.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

12. What are the 3 mandatory commands within call-manager-fallback?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Matches any length dialed number and truncates it to 4 digits.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Max-dn|max-ephone|ip source-address

13. How do you use an ephone template?
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
At the CLI: utils ntp status
Apply it to the ephone.
#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

14. 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
To notify SIP Phones of NTP
...
1 ... this is not optional!
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

15. 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
Sh ip rsvp reservation||sh sccp connections
...
IP Voice Media Streaming App
Allows you to transfer by only pressing the Transfer button once.

16. 'If you want to make changes to any softkeys where do you do it?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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.
Outbound dial-peers

17. How do you support multiple codecs on a dialpeer?
The Called/Calling Transformations are superceded.
Apply voice-class codec
CUCM OS Administration Settings --> NTP Servers
(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

18. In a SIP Dial Rule how do you represent a dialed * instead of it being used as a wildcard?

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19. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Put them in a route list.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Max-dn|max-ephone|ip source-address

20. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Ccm-manager music-on-hold
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
1 ... this is not optional!
Dial-peers

21. What kind of relationship does an MGCP gateway have with CUCM?
To notify SIP Phones of NTP
(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
Dial-peers
Master/Slave relationship. CUCM controls it.

22. When using drop-through-option What is the max number of huntgroups?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Re-enter the mgcp bind control and mgcp bind media commands.
1 ... this is not optional!
Assign a logout-profile to the ephone.

23. 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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Assign a logout-profile to the ephone.

24. How do you create a trunk on the switch side?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
#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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Dial-peers

25. What dtmf-relay type do you use for an H323 GW?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Dtmf-relay h245-alpha
Sh ccm-manager
Mobile Voice Access

26. On an H323 GW - how do you adjust the timers for redundancy hunting?
Device Pool Locations
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
SERVICE PARAMETER> Automated Alternate Routing Enable > True

27. How do you configure SRST?
#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
Call-manager-fallback or telephony-service mode SRST
Call forwarding between voip to voip (when CUBE is in play)
(config)#voice register dialplan

28. What do you need to do to activate the CME GUI?
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.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#test voice translation rule 1 <input to test>
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit

29. What does an H323 GW require that MGCP GWs do not?
Dial-peers
Re-enter the mgcp bind control and mgcp bind media commands.
IP Voice Media Streaming App
(config)#sh cdp neigh detail

30. '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
voice translation-profile|and|voice translation-rule
Dtmf-relay h245-alpha
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
...

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

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32. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
Single Number Reach (Mobile Connect)
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

33. How do you prevent H323 caller-id updates to CUCM
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#voice service voip| #no supplementary-service h225-notify cid-update
Assign a logout-profile to the ephone.
Debug isdn q931

34. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Debug ephone moh
Reroute when here is WAN congestion.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

35. How do you set the inter-digit timeout for SIP phones in CME?
(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)#voice register dialplan
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

36. How do you configure phone ports on a 3750?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
(config)#voice register dialplan
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

37. Describe how you configure SIP URI functionality.

...
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 .)
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

38. What does the Transfer On-hook Enabled Service Parameter do?
voice translation-profile|and|voice translation-rule
24kb/s
At the CLI: utils ntp status
Allows you to transfer by only pressing the Transfer button once.

39. What must you do for a BACD script to work on a CME router?
CUCM Service Parameters --> Call Park Reversion Timer
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
8kb/s
Mobile Voice Access

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

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41. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Show ccm-manager

42. What are the commands to configure an H323 GW?
#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
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.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
#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

43. What is the bit rate for a G.729 call excluding layer 2?
Configure it on the route group through the route list - then it will be local to the route list.
Device Pool Locations
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
8kb/s

44. How do you prevent toll fraud on CME?
The name configuration field in ephone-dn and voice register dn
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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 ....
Bottom up - to prevent glare.

45. How do you block an external call from being transferred back out to the pstn by an internal user?
Outbound dial-peers
Service Parameter --> Block OffNet To OffNet Transfer --> True
Reroute when here is WAN congestion.
Master/Slave relationship. CUCM controls it.

46. What are the commands to configure SIP phones in CME?
Apply voice-class codec
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Put them in a route list.
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

47. What should you configure before entering auto qos?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Bandwidth
(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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

48. How do you disable KPML?
SIP Route Pattern over a SIP Trunk.
(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
Assign SIP Dial Rules
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

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

Auto Call Pickup Enabled
Service Parameters --> Mobile Voice Access Number
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

50. Where do you use VIA zone?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
In the CUCM 7.0.1 Release Notes ... search for restore.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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