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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. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
Apply voice-class codec
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Max-dn|max-ephone|ip source-address

2. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In the CUCM 7.0.1 Release Notes ... search for restore.
Sends the Calling Name.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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 .)

3. How do you set up redundancy on outbound dial-peers on an H323 gateway?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
#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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

4. What are the commands to manually configure an MGCP gateway?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#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
#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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

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

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6. How do you use the # as a string terminator within a SIP Dial Rule?
#test voice translation rule 1 <input to test>
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Precede the # with a > ... so 9011*>#

7. '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
...
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.
Sends the Calling Name.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

8. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
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.
CUCM OS Administration Settings --> NTP Servers
(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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

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

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10. What must you do for a BACD script to work on a CME router?
When they are explicitly matched in a destination-pattern in a dial-peer.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

11. How do you create a trunk on the switch side?
'Use before the ... so XXXX
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#voice service voip| #no supplementary-service h225-notify cid-update

12. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

IP Voice Media Streaming App

13. How do you configure phone ports on a 3750?
1 ... this is not optional!
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

14. SNR is also known as?
Mobile Connect
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Call forwarding between voip to voip (when CUBE is in play)
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

15. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Call Simulator. You can use to validate path from router to the PSTN.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
When they are explicitly matched in a destination-pattern in a dial-peer.
The Called/Calling Transformations are superceded.

16. How do you block an external call from being transferred back out to the pstn by an internal user?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Outbound dial-peers
Single Number Reach (Mobile Connect)
Service Parameter --> Block OffNet To OffNet Transfer --> True

17. What are the commands to configure a SIP phone in CUCME?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
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)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
(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

18. What are the commands to configure a T1/E1 PRI?

(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
Service Parameters --> Mobile Voice Access Number
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

19. Privacy is enabled system-wide in CUCM by default. (T or F)
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
TRUE
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

20. What would force you to use telephony-service to configure SRST?
Sh ip rsvp reservation||sh sccp connections
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

21. What are the commands to create the L3 routing interface for VLANS (SVI)?
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
Service Parameters --> Mobile Voice Access Number
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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

22. How do you prevent toll fraud on CME?
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 ....
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Auto Call Pickup Enabled
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

23. 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
Apply it to the ephone.
...
#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 Voice Access

24. Maximum Wait Time for Desk Pickup?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Mobile Voice Access
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

25. How do you enable AAR?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Sends the Calling Name.
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

26. What does Display-IE do?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Sends the Calling Name.

27. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Assign a logout-profile to the ephone.

SIP Route Pattern over a SIP Trunk.

28. How do you configure CUBE?

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29. When are digits stripped in a gateway?
#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
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 ....
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi
When they are explicitly matched in a destination-pattern in a dial-peer.

30. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Via the voice hunt-group parallel command
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

31. With the gw-priority command - does higher or lower priority take precedence?
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Higher

32. What is the bit rate for a G.729 call excluding layer 2?
...
Put them in a route list.
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
8kb/s

33. How do you set the inter-digit timeout for SIP phones in CME?
Auto Call Pickup Enabled
(config)#voice register dialplan
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

34. How do you enable Extension Mobility for a device in CME?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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)
Assign a logout-profile to the ephone.

35. How can you confirm the MGCP GW is registered to CUCM - in IOS?
CUCM Service Parameters --> Call Park Reversion Timer
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)
Sh ccm-manager
The name configuration field in ephone-dn and voice register dn

36. 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?
Master/Slave relationship. CUCM controls it.
voice register pool|and|voice register dn
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)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

37. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

SIP Route Pattern over a SIP Trunk.
CUCM OS Administration Settings --> NTP Servers

38. How do you configure a gateway to register with gatekeeper?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Call-manager-fallback or telephony-service mode SRST
#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

39. 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.
(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

Single Number Reach (Mobile Connect)

40. What kind of relationship does an MGCP gateway have with CUCM?
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.
Master/Slave relationship. CUCM controls it.
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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

41. What is Phone NTP Reference used for?
To notify SIP Phones of NTP
Allows you to transfer by only pressing the Transfer button once.
voice translation-profile|and|voice translation-rule
In the CUCM 7.0.1 Release Notes ... search for restore.

42. 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?

'Use before the ... so XXXX
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

43. 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.
Matches any length dialed number and truncates it to 4 digits.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
voice register pool|and|voice register dn

44. What is SIP URI?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
(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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

45. How do do configure TEHO?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
#after-hours block pattern
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
Bottom up - to prevent glare.

46. How would you enable security on a GK?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
(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
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

47. 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 ccm-manager
Assign a logout-profile 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
...

48. What are the commands to configure SIP phones in CME?
Debug ephone moh
Sh ip rsvp reservation||sh sccp connections
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
Mobile Connect

49. When a CUCM device dials a number - what happens?
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.
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 .)
Reroute when here is WAN congestion.
24kb/s

50. How do you prevent toll fraud on CUCM?
Put them in a route list.
Auto Call Pickup Enabled
#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
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True