Test your basic knowledge |

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 configure CUCM redundancy on an H323 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
Master/Slave relationship. CUCM controls it.
...
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

2. Describe the relationship between route patterns and end devices.
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.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Matches any length dialed number and truncates it to 4 digits.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

3. How do you configure class of service (CoS) in CUCM? CME?
24kb/s
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

CUCM - Partitions and Calling Search Spaces||CME - COR Lists

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

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5. What are the commands to configure SIP phones in CME?
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 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
8kb/s
Device Pool Locations

6. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

7. On the RDP What is the Rerouting CSS used for?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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. What is a best practice for digit manipulation - in regards to H323 GWs?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Ccm-manager music-on-hold
Single Number Reach (Mobile Connect)

9. How do you place SCCP and SIP phones into a single huntgroup?
1 ... this is not optional!
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.
IP Voice Media Streaming App
Via the voice hunt-group parallel command

10. Maximum Wait Time for Desk Pickup?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
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)
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Mobile Connect

11. What are the steps to configure Single Number Reach and Mobile Voice Access?
#voice service voip| #no supplementary-service h225-notify cid-update

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.

12. How do you ensure that G.711 only is used?
Precede the # with a > ... so 9011*>#
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas

13. When do you do digit manipulation at the route pattern as opposed to the route list?

Ccm-manager music-on-hold
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
When multiple sites use the same route pattern - do your digit manipulation on a route list.

14. How do you configure phone ports on an ESW?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Assign a logout-profile to the ephone.
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
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

15. 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
...
At the CLI: utils ntp status
In the CUCM 7.0.1 Release Notes ... search for restore.
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

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

17. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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 .)
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Ccm-manager music-on-hold
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

18. 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
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True

19. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#test voice translation rule 1 <input to test>
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
TRUE

20. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
At the CLI: utils ntp status
(config)#voice register dialplan
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

21. When setting up SIP URI where do you configure the CUCM's domain name?'
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Service Parameters --> Mobile Voice Access Number

22. What do you need to do to activate the CME GUI?
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
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
Bottom up - to prevent glare.
Single Number Reach (Mobile Connect)

23. When do you use translate called? Translate calling?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Apply it to the ephone.
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

24. How do you configure DHCP in IOS?
Debug ephone moh
(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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
When configuring TEHO.

25. How do you configure CUBE?

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26. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Via the voice hunt-group parallel command

27. What's the best way to perform digit manipulation on a route group?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Configure it on the route group through the route list - then it will be local to the route list.
It's best to strip digits at the voice port.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

28. 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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

29. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Dial-peers
To enable two-stage dialing.
Matches any length dialed number and truncates it to 4 digits.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

30. How do you disable KPML?
#voice service voip| #no supplementary-service h225-notify cid-update
Assign SIP Dial Rules
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 ....
Dtmf-relay h245-alpha

31. What terminology translates to SRST?
Assign SIP Dial Rules
'Use before the ... so XXXX
'Service Parameters --> Auto Answer Timer
Reroute when there is a WAN Outage.

32. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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33. How do you configure a gateway to register with gatekeeper?
In the CUCM 7.0.1 Release Notes ... search for restore.
#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

Dtmf-relay h245-alpha

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

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35. What CM Service needs to be start in Serviceability for MOH to work?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
IP Voice Media Streaming App
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

36. What types of digit manipulation can you perform at the route pattern?

...
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Bottom up - to prevent glare.

37. SNR is also known as?
Debug isdn q931
It's best to strip digits at the voice port.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Mobile Connect

38. What terminology translates to AAR?
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.
#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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

39. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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.
Put them in a route list.

40. What would force you to use telephony-service to configure SRST?
...
Assign a logout-profile to the ephone.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
CUCM OS Administration Settings --> NTP Servers

41. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
...
Reroute when here is WAN congestion.

42. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> Call Park Reversion Timer
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
It's best to strip digits at the voice port.
Precede the # with a > ... so 9011*>#

43. What is SIP URI?
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.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Bottom up - to prevent glare.
Phone number followed by domain name.|i.e. 3006@ipxcme.com

44. How do do configure TEHO?
(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
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
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.
Max-dn|max-ephone|ip source-address

45. What does rule 1 /^.*(....$)/ /1/ do?
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
Apply it to the ephone.
Matches any length dialed number and truncates it to 4 digits.
#test voice translation rule 1 <input to test>

46. Describe how you configure SIP URI functionality.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
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

47. 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)
The name configuration field in ephone-dn and voice register dn
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

48. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

Outbound dial-peers
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

49. How is NTP sych setup in CUCM?
Ccm-manager music-on-hold
Top Down means that channel 1 will be the first channel used to place outgoing calls.
CUCM OS Administration Settings --> NTP Servers
#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

50. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Via the voice hunt-group parallel command
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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