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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. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
SIP Dial Rules
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Master/Slave relationship. CUCM controls it.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

2. How do you prevent toll fraud on CME?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Outbound dial-peers
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 ....

3. What does Display-IE do?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Sends the Calling Name.
Debug ephone moh
On CUCM it's identical to adding an H323 GW.

4. How do you prevent H323 caller-id updates to CUCM
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
#voice service voip| #no supplementary-service h225-notify cid-update
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
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

5. How do you change modes in voice register global?
Show ccm-manager
It's best to strip digits at the voice port.
1 ... this is not optional!
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

6. What is the full E164 format?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Precede the # with a > ... so 9011*>#
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)
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

7. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Dtmf-relay h245-alpha
Show ccm-manager
When they are explicitly matched in a destination-pattern in a dial-peer.

8. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

In CUCM - configure CFUR to point to it's E164 number.

9. 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?
#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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
'Use before the ... so XXXX

10. How do you create a trunk on the switch side?
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
#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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

11. How do you configure phone ports on an ESW?
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
Matches any length dialed number and truncates it to 4 digits.
Configure it on the route group through the route list - then it will be local to the route list.
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.

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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
...

13. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Debug ephone moh
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

14. What is the Service Parameter to allow the phone that is picking ip to auto answer?
In the CUCM 7.0.1 Release Notes ... search for restore.
Mobile Connect
Auto Call Pickup Enabled
The name configuration field in ephone-dn and voice register dn

15. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
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
Dial-peers
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP

16. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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

17. When do you do digit manipulation at the route pattern as opposed to the route list?
To notify SIP Phones of NTP
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.
When multiple sites use the same route pattern - do your digit manipulation on a route list.

18. What CM Service needs to be start in Serviceability for MOH to work?
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)
To enable two-stage dialing.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
IP Voice Media Streaming App

19. How do you allow the Calling Name to be sent to the PSTN on a router?
Outbound dial-peers
Allows you to transfer by only pressing the Transfer button once.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
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 .)

20. What commands are needed to configure the voice register pool in CME?
Assign SIP Dial Rules
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.
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
Sends the Calling Name.

21. What would force you to use telephony-service to configure SRST?
Automatically configures the MGCP GW for you.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

22. What is a best practice for digit manipulation - in regards to H323 GWs?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Auto Call Pickup Enabled
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.

23. When setting up SIP URI where do you configure the CUCM's domain name?'
Apply it to the ephone.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
To notify SIP Phones of NTP

24. How do you allow H323 calls to be preserved should the primary H323 GW fail?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
IP Voice Media Streaming App
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

25. With the gw-priority command - does higher or lower priority take precedence?
Higher
Max-dn|max-ephone|ip source-address
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
In the CUCM 7.0.1 Release Notes ... search for restore.

26. Maximum Wait Time for Desk Pickup?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

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 ....

27. '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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
...
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

28. How do you test a Voice Translation Rule?
(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
#test voice translation rule 1 <input to test>
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.
Show ccm-manager

29. Which takes precedence Device Locations or Device Pool Locations?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Apply it to the ephone.
Device Pool Locations
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

30. How do you see multicast packets being sent?
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
Reroute when there is a WAN Outage.
Debug ephone moh
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

31. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
#test voice translation rule 1 <input to test>
Mobile Connect
In the CUCM 7.0.1 Release Notes ... search for restore.

32. 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
Service Parameter --> Block OffNet To OffNet Transfer --> True
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.
8kb/s

33. What do you need to do to activate the CME GUI?
(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
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
In CUCM - configure CFUR to point to it's E164 number.

34. What's the best way to do digit manipulation on an IOS gateway?
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.
voice translation-profile|and|voice translation-rule
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 .)
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

35. What are the commands to configure SRST in fallback?
Reroute when there is a WAN Outage.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

36. What should you configure before entering auto qos?
Bandwidth
Device Pool Locations
In CUCM - configure CFUR to point to it's E164 number.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

37. How do you configure SRST?
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Call-manager-fallback or telephony-service mode SRST
Apply it to the ephone.

38. How would you verify that DHCP is working in IOS?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
IP Voice Media Streaming App
(config)#sh cdp neigh detail
Re-enter the mgcp bind control and mgcp bind media commands.

39. How do you enable Extension Mobility for a device in CME?
#after-hours block pattern
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Assign a logout-profile to the ephone.
Precede the # with a > ... so 9011*>#

40. How do you configure a SIP Trunk? (router side)
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)#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
Master/Slave relationship. CUCM controls it.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

41. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Call forwarding between voip to voip (when CUBE is in play)
'Use before the ... so XXXX

42. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?

(config)#voice register dialplan
(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
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.

43. 'If you're not getting a DHCP address from CUCM what then?
...
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

44. What must you do for a BACD script to work on a CME router?
Debug ephone moh
SIP Dial Rules
The Called/Calling Transformations are superceded.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

45. What are the commands to configure SIP phones in CME?
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
Sh ccm-manager
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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

46. What are the commands to configure a MGCP Gateway? (router)
Mobile Connect
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

47. When do you use translate called? Translate calling?
#voice service voip| #no supplementary-service h225-notify cid-update
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
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
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. What are the basic SCCP Commands fro telephony-service in CUCME?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
#voice service voip| #no supplementary-service h225-notify cid-update
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

49. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
CUCM Service Parameters --> Call Park Reversion Timer
Call-manager-fallback or telephony-service mode SRST
Bandwidth
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

50. Where do you use VIA zone?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
(config)#voice register dialplan
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
#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