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 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
In the CUCM 7.0.1 Release Notes ... search for restore.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

2. What are the commands to configure an H323 GW?

Matches any length dialed number and truncates it to 4 digits.
IP Voice Media Streaming App
#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

3. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Sh ip rsvp reservation||sh sccp connections
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

4. 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
When configuring TEHO.
To notify SIP Phones of NTP
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.

5. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
In the CUCM 7.0.1 Release Notes ... search for restore.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

6. What does an H323 GW require that MGCP GWs do not?
Dial-peers
In CUCM - configure CFUR to point to it's E164 number.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
SIP Route Pattern over a SIP Trunk.

7. How would you enable security on a GK?
'Use before the ... so XXXX
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
At the CLI: utils ntp status
Mobile Connect

8. When are digits stripped in a gateway?
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
When they are explicitly matched in a destination-pattern in a dial-peer.
Apply voice-class codec
Outbound dial-peers

9. How do do configure TEHO?
In the CUCM 7.0.1 Release Notes ... search for restore.
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
Allows you to transfer by only pressing the Transfer button once.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

10. What terminology translates to SRST?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Reroute when there is a WAN Outage.
(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
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

11. 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
Ccm-manager music-on-hold
Allows you to transfer by only pressing the Transfer button once.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
...

12. What commands are needed to configure the voice register pool in CME?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
8kb/s
Debug ephone moh
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

13. How do you disable KPML?
Assign SIP Dial Rules
Mobile Connect
#voice service voip| #no supplementary-service h225-notify cid-update
...

14. What should you configure before entering auto qos?
The name configuration field in ephone-dn and voice register dn
Bandwidth
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|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

15. What is Mobile Voice Access?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
The name configuration field in ephone-dn and voice register dn
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
voice translation-profile|and|voice translation-rule

16. How do you prevent toll fraud on CME?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Configure it on the route group through the route list - then it will be local to the 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 ....
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

17. Is the order of the MRGs in an MRGL significant?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Bottom up - to prevent glare.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Master/Slave relationship. CUCM controls it.

18. What kind of relationship does an MGCP gateway have with CUCM?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
...
Master/Slave relationship. CUCM controls 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

19. What terminology translates to AAR?
8kb/s
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Reroute when here is WAN congestion.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

20. How do you block calls under call-manager-fallback?
#after-hours block pattern
Bandwidth
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
(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

21. 'How do you inform a SIP phone of NTP information?
(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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Outbound dial-peers
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

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

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23. What's the difference between AAR and SRST?
#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.
Higher
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

24. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Via the voice hunt-group parallel command
sh ephone reg|and|debug voip dialpeer

25. What is SIP URI?
...
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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

26. How do you enable AAR system wide?
(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
#test voice translation rule 1 <input to test>
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

27. How do you prioritize route groups?
Put them in a route list.
TRUE
SERVICE PARAMETER> Automated Alternate Routing Enable > True
IP Voice Media Streaming App

28. How do you verify that NTP is working on the CUCM server?
Service Parameters --> Mobile Voice Access Number
At the CLI: utils ntp status
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Auto Call Pickup Enabled

29. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
'Use before the ... so XXXX
In the CUCM 7.0.1 Release Notes ... search for restore.
SIP Dial Rules

30. 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
Sh ccm-manager
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
When they are explicitly matched in a destination-pattern in a dial-peer.

31. In CME Where is the Calling Name derived from?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
The name configuration field in ephone-dn and voice register dn
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
It's best to strip digits at the voice port.

32. Describe the relationship between route patterns and end devices.
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.
Reroute when there is a WAN Outage.
SIP Route Pattern over a SIP Trunk.
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.

33. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Device Pool Locations
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

34. 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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Assign a logout-profile to the ephone.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

35. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Dial-peers
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
(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

36. What are the commands to configure SIP phones in CME?
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Reroute when here is WAN congestion.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

37. What are two caveats to using the ccm-manager config server</ip> command?

Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

38. On the RDP What is the CSS used for?

Auto Call Pickup Enabled
Bottom up - to prevent glare.
Mobile Voice Access

39. What are the steps to integrate CUPS with CUCM?
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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)

40. '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 name configuration field in ephone-dn and voice register dn
(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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
...

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

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42. What are the commands to configure NTP in IOS?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
It's best to strip digits at the voice port.

43. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?

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.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Call Simulator. You can use to validate path from router to the PSTN.

44. Privacy is enabled system-wide in CUCM by default. (T or F)
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
TRUE
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 .)
Apply voice-class codec

45. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
It's best to strip digits at the voice port.
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 ....
Bottom up - to prevent glare.

46. What are the commands to configure a T1/E1 PRI?
(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
CUCM OS Administration Settings --> NTP Servers
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.
(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

47. What would force you to use telephony-service to configure SRST?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Master/Slave relationship. CUCM controls it.
Call Simulator. You can use to validate path from router to the PSTN.

48. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
(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
Bottom up - to prevent glare.

Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

49. What does ccm-manager config server [IP]</ip> do?
(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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Bottom up - to prevent glare.
Automatically configures the MGCP GW for you.

50. How do you prevent H323 caller-id updates to CUCM
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
#voice service voip| #no supplementary-service h225-notify cid-update
Ccm-manager music-on-hold