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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 place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Reroute when here is WAN congestion.
...

2. 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!!!
IP Voice Media Streaming App
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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

3. What is the Enable Enterprise Feature Access Service Parameter used for?
sh ephone reg|and|debug voip dialpeer
To enable two-stage dialing.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
SIP Route Pattern over a SIP Trunk.

4. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
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
Reroute when there is a WAN Outage.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

5. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
The Called/Calling Transformations are superceded.
sh ephone reg|and|debug voip dialpeer
...

6. How is NTP sych setup in CUCM?
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
When they are explicitly matched in a destination-pattern in a dial-peer.
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

7. What does KPML do?
#voice service voip| #no supplementary-service h225-notify cid-update
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 ....
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
voice translation-profile|and|voice translation-rule

8. What does Display-IE do?
Mobile Voice Access
Re-enter the mgcp bind control and mgcp bind media commands.
Sends the Calling Name.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

9. What are the commands to create vlans on an ESW?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

10. What are two caveats to using the ccm-manager config server</ip> command?
Matches any length dialed number and truncates it to 4 digits.
Call forwarding between voip to voip (when CUBE is in play)

Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

11. How do you configure phone ports on an ESW?
Ccm-manager music-on-hold
The name configuration field in ephone-dn and voice register dn
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
Allows you to transfer by only pressing the Transfer button once.

12. When can you not use a Standard Local Route Group?
When configuring TEHO.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
(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
Apply voice-class codec

13. What do you need to do to activate the CME GUI?
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

When they are explicitly matched in a destination-pattern in a dial-peer.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

14. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
CUCM OS Administration Settings --> NTP Servers
In the CUCM 7.0.1 Release Notes ... search for restore.
In CUCM - configure CFUR to point to it's E164 number.

15. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
sh ephone reg|and|debug voip dialpeer
(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
Re-enter the mgcp bind control and mgcp bind media commands.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

16. 'If you want to make changes to any softkeys where do you do it?
#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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
#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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

17. How do you test a Voice Translation Rule?
Allows you to transfer by only pressing the Transfer button once.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#test voice translation rule 1 <input to test>
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

18. How do you use the # as a string terminator within a SIP Dial Rule?
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
Precede the # with a > ... so 9011*>#
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Service Parameter --> Block OffNet To OffNet Transfer --> True

19. '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
The Called/Calling Transformations are superceded.
Sh ip rsvp reservation||sh sccp connections
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
...

20. How do you prevent toll fraud on CUCM?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Assign a logout-profile to the ephone.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

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

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22. What are the commands to create the L3 routing interface for VLANS (SVI)?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Show ccm-manager
Dtmf-relay h245-alpha
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

23. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Re-enter the mgcp bind control and mgcp bind media commands.

24. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
It's best to strip digits at the voice port.
(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
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

25. What must you do for a BACD script to work on a CME router?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

26. How do you configure AAR?
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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
On CUCM it's identical to adding an H323 GW.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

27. With the gw-priority command - does higher or lower priority take precedence?
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
(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
Higher
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

28. What dtmf-relay type do you use for an H323 GW?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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.
Dtmf-relay h245-alpha
Master/Slave relationship. CUCM controls it.

29. 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?
Mobile Voice Access
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
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.
The name configuration field in ephone-dn and voice register dn

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 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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
...

31. What are the commands to configure SIP phones in CME?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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
SIP Route Pattern over a SIP Trunk.
(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

32. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
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
#after-hours block pattern

33. On the RDP What is the Rerouting CSS used for?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Single Number Reach (Mobile Connect)
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
(config)#voice register dialplan

34. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Single Number Reach (Mobile Connect)
Call Simulator. You can use to validate path from router to the PSTN.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
#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

35. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
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.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Higher
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

36. What are the commands to manually configure an MGCP gateway?
Call forwarding between voip to voip (when CUBE is in play)
#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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
#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

37. 'If you're not getting a DHCP address from CUCM what then?
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.
'Use before the ... so XXXX
8kb/s
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

38. What types of digit manipulation can you perform at the route pattern?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
To notify SIP Phones of NTP
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

39. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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
It's best to strip digits at the voice port.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

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

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41. How do you configure class of service (CoS) in CUCM? CME?
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
When multiple sites use the same route pattern - do your digit manipulation on a route list.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Via the voice hunt-group parallel command

42. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
'Service Parameters --> Auto Answer Timer
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.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

43. 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
Device Pool Locations
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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

44. 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?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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.
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)
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

45. How do you enable Extension Mobility for a device in CME?
'Use before the ... so XXXX
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Assign a logout-profile to the ephone.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

46. How do you configure CUCM redundancy on an H323 gateway?
voice translation-profile|and|voice translation-rule
(config)#sh cdp neigh detail
IP Voice Media Streaming App
#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

47. How do you set the Call Park Reversion Timer?
Call forwarding between voip to voip (when CUBE is in play)

CUCM Service Parameters --> Call Park Reversion Timer
To notify SIP Phones of NTP

48. How do you prevent toll fraud on CME?
Mobile Connect
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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
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 ....

49. In CME Where is the Calling Name derived from?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
The name configuration field in ephone-dn and voice register dn
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

50. How can you confirm the MGCP GW is registered to CUCM - in IOS?
#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
Show ccm-manager
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Sh ccm-manager