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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. How do you prevent H323 caller-id updates to CUCM
It's best to strip digits at the voice port.
(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
#voice service voip| #no supplementary-service h225-notify cid-update
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

2. Where can you assign the AAR Group?
(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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Reroute when here is WAN congestion.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

3. Name 2 commands to verify RSVP functionality.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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
Sh ip rsvp reservation||sh sccp connections
On CUCM it's identical to adding an H323 GW.

4. What are the steps to integrate CUPS with CUCM?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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
8kb/s
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

5. What is Mobile Voice Access?
#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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
(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
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

6. Where do you use VIA zone?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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 .)
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
Higher

7. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
'Use before the ... so XXXX
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Single Number Reach (Mobile Connect)

8. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
'Use before the ... so XXXX
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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

9. 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?
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.
24kb/s
When configuring TEHO.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

10. How do you configure CUCM redundancy on an H323 gateway?
#voice service voip| #no supplementary-service h225-notify cid-update
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
CUCM OS Administration Settings --> NTP Servers
#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

11. How do you verify that NTP is working on the CUCM server?
(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
At the CLI: utils ntp status
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

12. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Max-dn|max-ephone|ip source-address
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Bandwidth

13. What are the basic ephone-dn and ephone commands?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Call Simulator. You can use to validate path from router to the PSTN.
Auto Call Pickup Enabled
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

14. What is a best practice for digit manipulation - in regards to H323 GWs?
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.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Put them in a route list.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

15. When are digits stripped in a gateway?
#voice service voip| #no supplementary-service h225-notify cid-update

Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
When they are explicitly matched in a destination-pattern in a dial-peer.

16. What is SIP URI?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Dtmf-relay h245-alpha
Outbound dial-peers
Phone number followed by domain name.|i.e. 3006@ipxcme.com

17. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#voice service voip| #no supplementary-service h225-notify cid-update

18. What kind of relationship does an MGCP gateway have with CUCM?
Assign SIP Dial Rules
Master/Slave relationship. CUCM controls it.
Higher
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

19. How do you create a trunk on the switch side?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Device Pool Locations
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

20. How do you prevent toll fraud on CME?
...
The Called/Calling Transformations are superceded.
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 ....
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

21. What are the commands to configure SRST in fallback?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Precede the # with a > ... so 9011*>#
In CUCM - configure CFUR to point to it's E164 number.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

22. 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
It's best to strip digits at the voice port.
voice translation-profile|and|voice translation-rule
#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

23. How do you place SCCP and SIP phones into a single huntgroup?
...
Via the voice hunt-group parallel command
Phone number followed by domain name.|i.e. 3006@ipxcme.com
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

24. How do you create a trunk on the router side?
When they are explicitly matched in a destination-pattern in a dial-peer.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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
...

25. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
8kb/s
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Top Down means that channel 1 will be the first channel used to place outgoing calls.

26. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Auto Call Pickup Enabled
In the CUCM 7.0.1 Release Notes ... search for restore.
24kb/s
TRUE

27. What are the steps to configure Single Number Reach and Mobile Voice Access?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Debug ephone moh

28. 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
In CUCM - configure CFUR to point to it's E164 number.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

29. How do you ensure that G.711 only is used?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Dtmf-relay h245-alpha
SIP Dial Rules

30. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
To enable two-stage dialing.
(config)#voice register dialplan
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

31. How do you setup AutoRegistration in CUCM?
To notify SIP Phones of NTP
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Sh ccm-manager
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

32. 'If you're not getting a DHCP address from CUCM what then?
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 ....
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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

33. Maximum Wait Time for Desk Pickup?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
sh ephone reg|and|debug voip dialpeer
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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

34. What types of digit manipulation can you perform at the route pattern?
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
Dtmf-relay h245-alpha
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

35. What are the commands to configure a T1/E1 PRI?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Device Pool Locations
(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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

36. 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
#test voice translation rule 1 <input to test>
...
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.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

37. 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?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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
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 .)

38. What are the commands to configure a MGCP Gateway? (router)
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
It's best to strip digits at the voice port.
Apply voice-class codec
CUCM Service Parameters --> Call Park Reversion Timer

39. What does Display-IE do?
CUCM Service Parameters --> Call Park Reversion Timer
Debug isdn q931
The Called/Calling Transformations are superceded.
Sends the Calling Name.

40. On an H323 GW - how do you adjust the timers for redundancy hunting?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Sh ccm-manager
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

41. How do you test a Voice Translation Rule?
Assign SIP Dial Rules
Reroute when there is a WAN Outage.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#test voice translation rule 1 <input to test>

42. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

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43. What are two caveats to using the ccm-manager config server</ip> command?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
voice register pool|and|voice register dn

44. What terminology translates to AAR?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Via the voice hunt-group parallel command
Reroute when here is WAN congestion.

45. How do you get around relying on DNS for your CUCMs?
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Assign SIP Dial Rules
...

46. How do you configure AAR?
Via the voice hunt-group parallel command
Single Number Reach (Mobile Connect)
Call-manager-fallback or telephony-service mode SRST
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

47. How do you configure phone ports on an ESW?
SIP Dial Rules
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
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
Max-dn|max-ephone|ip source-address

48. What is CSIM?
Call Simulator. You can use to validate path from router to the PSTN.
Mobile Connect
Reroute when there is a WAN Outage.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

49. SNR is also known as?
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
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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Mobile Connect

50. How do you configure an MGCP GW? (router side)
Re-enter the mgcp bind control and mgcp bind media commands.
Automatically configures the MGCP GW for you.
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