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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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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. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
When configuring TEHO.
In the CUCM 7.0.1 Release Notes ... search for restore.
Service Parameters --> Mobile Voice Access Number

2. 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?
Sh ip rsvp reservation||sh sccp connections
Master/Slave relationship. CUCM controls it.
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)
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

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

4. How do you set the inter-digit timeout for SIP phones in CME?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
(config)#voice register dialplan
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

5. What is a best practice for digit manipulation - in regards to H323 GWs?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Bottom up - to prevent glare.

6. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
#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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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

7. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.

SIP Dial Rules
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

8. What must you do for a BACD script to work on a CME router?
(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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
voice translation-profile|and|voice translation-rule

9. What would force you to use telephony-service to configure SRST?
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
Device Pool Locations
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

10. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
When configuring TEHO.
Configure it on the route group through the route list - then it will be local to the route list.
Call Simulator. You can use to validate path from router to the PSTN.

11. What are the commands to configure SIP phones in CME?
Matches any length dialed number and truncates it to 4 digits.
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
Show ccm-manager
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

12. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
Reroute when here is WAN congestion.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

13. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Ccm-manager music-on-hold
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
IP Voice Media Streaming App

14. When setting up SIP URI where do you configure the CUCM's domain name?'
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Higher
Precede the # with a > ... so 9011*>#

15. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Precede the # with a > ... so 9011*>#
voice register pool|and|voice register dn
TRUE
Auto Call Pickup Enabled

16. What are two caveats to using the ccm-manager config server</ip> command?
Device Pool Locations

Dtmf-relay h245-alpha
Debug isdn q931

17. 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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
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
Allows you to transfer by only pressing the Transfer button once.

18. How do you enable Extension Mobility for a device in CME?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Assign a logout-profile to the ephone.
Higher
#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

19. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
#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
Mobile Connect

20. What are the steps to integrate CUPS with CUCM?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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
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

21. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
SIP Route Pattern over a SIP Trunk.
Outbound dial-peers
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.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

22. How do you use an ephone template?

voice register pool|and|voice register dn
Apply it to the ephone.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

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

24. 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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
(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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

25. 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
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
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.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

26. What does an H323 GW require that MGCP GWs do not?
#test voice translation rule 1 <input to test>
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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 .)
Dial-peers

27. When do you use translate called? Translate calling?
Apply it to the ephone.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
(config)#voice register dialplan

28. How do you disable KPML?
sh ephone reg|and|debug voip dialpeer
Assign SIP Dial Rules
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Precede the # with a > ... so 9011*>#

29. How do you configure class of service (CoS) in CUCM? CME?
...
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

Apply voice-class codec

30. How do you allow the Calling Name to be sent to the PSTN on a router?
Reroute when there is a WAN Outage.
(config)#sh cdp neigh detail
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)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

31. How would you verify that DHCP is working in IOS?
(config)#sh cdp neigh detail
8kb/s
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

32. 'How do you inform a SIP phone of NTP information?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Debug isdn q931
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

33. On the RDP What is the CSS used for?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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.
Mobile Voice Access

34. How do you prevent H323 caller-id updates to CUCM
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#voice service voip| #no supplementary-service h225-notify cid-update
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

35. 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.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
The Called/Calling Transformations are superceded.
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

36. On an MGCP GW - how could you see the primary and backup CUCM 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
To notify SIP Phones of NTP
Show ccm-manager
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

37. 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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#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
To enable two-stage dialing.

38. How do you create a trunk on the router side?
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
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
To notify SIP Phones of NTP

39. Describe how you configure SIP URI functionality.
Assign a logout-profile to the ephone.
In CUCM - configure CFUR to point to it's E164 number.
To enable two-stage dialing.

40. What are the steps to configure Single Number Reach and Mobile Voice Access?
At the CLI: utils ntp status
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Allows you to transfer by only pressing the Transfer button once.

41. What are the commands to create the L3 routing interface for VLANS (SVI)?
Put them in a route list.
Apply it to the ephone.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
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

42. Privacy is enabled system-wide in CUCM by default. (T or F)
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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
(config)#voice register dialplan
TRUE

43. What's the difference between AAR and SRST?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

44. How do you place SCCP and SIP phones into a single huntgroup?
On CUCM it's identical to adding an H323 GW.
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.
Via the voice hunt-group parallel command
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

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

...
1 ... this is not optional!
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

46. What is CSIM?
8kb/s
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
Call Simulator. You can use to validate path from router to the PSTN.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

47. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
#voice service voip| #no supplementary-service h225-notify cid-update

Show ccm-manager

48. How do you get around relying on DNS for your CUCMs?
#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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
When they are explicitly matched in a destination-pattern in a dial-peer.
Auto Call Pickup Enabled

49. How do you configure phone ports on a 3750?
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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
#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
Dtmf-relay h245-alpha

50. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
TRUE
When configuring TEHO.
Sends the Calling Name.