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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. Maximum Wait Time for Desk Pickup?
Via the voice hunt-group parallel command
Device Pool Locations
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

2. Which takes precedence Device Locations or Device Pool Locations?
Call Simulator. You can use to validate path from router to the PSTN.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
voice translation-profile|and|voice translation-rule
Device Pool Locations

3. How do you configure SRST?
Ccm-manager music-on-hold
Call-manager-fallback or telephony-service mode SRST
Sh ip rsvp reservation||sh sccp connections
...

4. What's the best way to perform digit manipulation on a route group?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Configure it on the route group through the route list - then it will be local to the route list.
The name configuration field in ephone-dn 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)

5. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
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
#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
Top Down means that channel 1 will be the first channel used to place outgoing calls.

6. What are the base telephony-service commands for CME?
'Use before the ... so XXXX
(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
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

7. What is a best practice for digit manipulation - in regards to H323 GWs?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Show ccm-manager
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Service Parameters --> Mobile Voice Access Number

8. What terminology translates to AAR?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Reroute when here is WAN congestion.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Matches any length dialed number and truncates it to 4 digits.

9. When a CUCM device dials a number - what happens?
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.
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 .)
(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
Reroute when here is WAN congestion.

10. 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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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
voice translation-profile|and|voice translation-rule

11. How do you prevent toll fraud on CME?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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 ....
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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.

12. How do you configure CUBE?

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13. Two useful troubleshooting commands for CUCME?
Ccm-manager music-on-hold
sh ephone reg|and|debug voip dialpeer
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)
1 ... this is not optional!

14. Name 2 commands to verify RSVP functionality.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
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.
Re-enter the mgcp bind control and mgcp bind media commands.
Sh ip rsvp reservation||sh sccp connections

15. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
...
Call Simulator. You can use to validate path from router to the PSTN.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

16. When using drop-through-option What is the max number of huntgroups?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1 ... this is not optional!
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

17. 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
#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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

18. 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?
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)
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)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

19. How do you configure DHCP in IOS?
Device Pool Locations
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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(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

20. 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!!!
Apply voice-class codec
(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
SERVICE PARAMETER> Automated Alternate Routing Enable > True

21. What kind of relationship does an MGCP gateway have with CUCM?
#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
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Master/Slave relationship. CUCM controls it.

22. 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
...
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

23. What are the commands to configure a MGCP Gateway? (router)
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
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 .)
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
(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

24. 'How do you inform a SIP phone of NTP information?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
It's best to strip digits at the voice port.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

25. Name 4 useful show commands for active calls.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

26. Is the + character supported on a VOIP dial-peer?

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27. What are the commands to create the L3 routing interface for VLANS (SVI)?
voice register pool|and|voice register dn
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
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
Master/Slave relationship. CUCM controls it.

28. What commands are needed to configure the voice register pool in CME?
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Assign a logout-profile to the ephone.
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

29. How do you enable AAR system wide?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Service Parameters --> Mobile Voice Access Number
SERVICE PARAMETER> Automated Alternate Routing Enable > True
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

30. How do you set the Call Park Reversion Timer?
Higher
CUCM Service Parameters --> Call Park Reversion Timer
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

31. What are the commands to configure a T1/E1 PRI?
Apply voice-class codec
(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 PARAMETER> Automated Alternate Routing Enable > True
'Service Parameters --> Auto Answer Timer

32. '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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
...
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

33. What is the full E164 format?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
On CUCM it's identical to adding an H323 GW.
Bottom up - to prevent glare.

34. What is SIP URI?
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Phone number followed by domain name.|i.e. 3006@ipxcme.com
#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

35. What does the Transfer On-hook Enabled Service Parameter do?
Service Parameters --> Mobile Voice Access Number
In CUCM - configure CFUR to point to it's E164 number.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Allows you to transfer by only pressing the Transfer button once.

36. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
The Called/Calling Transformations are superceded.
Auto Call Pickup Enabled
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

37. How do you configure a SIP Trunk? (router side)
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
(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
The name configuration field in ephone-dn and voice register dn
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.

38. On an H323 GW - how do you adjust the timers for redundancy hunting?
voice register pool|and|voice register dn
Debug isdn q931
#test voice translation rule 1 <input to test>
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

39. When setting up SIP URI where do you configure the CUCM's domain name?'
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

40. When do you use translate called? Translate calling?
Apply it to the ephone.
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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

41. Privacy is enabled system-wide in CUCM by default. (T or F)
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
TRUE
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
At the CLI: utils ntp status

42. What's the best way to do digit manipulation on an IOS gateway?
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
On CUCM it's identical to adding an H323 GW.
Allows you to transfer by only pressing the Transfer button once.

43. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
#after-hours block pattern
#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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Bottom up - to prevent glare.

44. How much bandwidth does a G.729 call including layer 3 require?
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
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
To notify SIP Phones of NTP
24kb/s

45. What are the commands to manually configure an MGCP gateway?
#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
CUCM OS Administration Settings --> NTP Servers
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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.

46. 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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
In CUCM - configure CFUR to point to it's E164 number.

47. Where do you use VIA zone?
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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Sends the Calling Name.

48. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Reroute when here is WAN congestion.
(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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Auto Call Pickup Enabled

49. How do you prevent H323 caller-id updates to CUCM
#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
In CUCM - configure CFUR to point to it's E164 number.

50. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Sends the Calling Name.
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
Re-enter the mgcp bind control and mgcp bind media commands.