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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. 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
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
Bottom up - to prevent glare.
CUCM OS Administration Settings --> NTP Servers

2. On the RDP What is the CSS used for?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Mobile Voice Access
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.
8kb/s

3. What does an H323 GW require that MGCP GWs do not?
Precede the # with a > ... so 9011*>#
Outbound dial-peers
Dial-peers
Service Parameters --> Mobile Voice Access Number

4. Is the order of the MRGs in an MRGL significant?
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.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
SIP Dial Rules
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

5. What are two caveats to using the ccm-manager config server</ip> command?
voice register pool|and|voice register dn

Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

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

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7. How do you enable AAR system wide?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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 ....
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

8. Name 4 useful show commands for active calls.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
...
...

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

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10. 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 + 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.
sh ephone reg|and|debug voip dialpeer
The name configuration field in ephone-dn and voice register dn

11. What should you configure before entering auto qos?
'Service Parameters --> Auto Answer Timer
#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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Bandwidth

12. What terminology translates to AAR?
Reroute when here is WAN congestion.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
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

13. Privacy is enabled system-wide in CUCM by default. (T or F)
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
TRUE
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.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

14. Does CUCM support RSVP natively?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Single Number Reach (Mobile Connect)
#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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

15. How do you configure a gateway to register with gatekeeper?
#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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
'Service Parameters --> Auto Answer Timer
Apply voice-class codec

16. On an H323 GW - how do you adjust the timers for redundancy hunting?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Sends the Calling Name.
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

17. How do you prevent toll fraud on CUCM?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
...
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
It's best to strip digits at the voice port.

18. How do you prevent toll fraud on CME?
In the CUCM 7.0.1 Release Notes ... search for restore.
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 ....
CUCM Service Parameters --> Call Park Reversion Timer
voice translation-profile|and|voice translation-rule

19. When can you not use a Standard Local Route Group?
When configuring TEHO.
8kb/s
Service Parameter --> Block OffNet To OffNet Transfer --> True
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

20. 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.
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
Show 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

21. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
...
#test voice translation rule 1 <input to test>
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.

22. What are the commands to configure a T1/E1 PRI?
Call forwarding between voip to voip (when CUBE is in play)
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
(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
...

23. Name 2 commands to verify RSVP functionality.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Via the voice hunt-group parallel command
Sh ip rsvp reservation||sh sccp connections
'Use before the ... so XXXX

24. How is NTP sych setup in CUCM?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Auto Call Pickup Enabled
CUCM OS Administration Settings --> NTP Servers
Bottom up - to prevent glare.

25. How can you confirm the MGCP GW is registered to CUCM - in IOS?
#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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
8kb/s
Sh ccm-manager

26. How do you configure DHCP in IOS?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Ccm-manager music-on-hold
Via the voice hunt-group parallel command
(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

27. How do you use the # as a string terminator within a SIP Dial Rule?
24kb/s
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Precede the # with a > ... so 9011*>#
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

28. When are digits stripped in a gateway?
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.
Bottom up - to prevent glare.
When they are explicitly matched in a destination-pattern in a dial-peer.
In CUCM - configure CFUR to point to it's E164 number.

29. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Device Pool Locations
Service Parameters --> Mobile Voice Access Number
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Allows you to transfer by only pressing the Transfer button once.

30. What are the commands to create the L3 routing interface for VLANS (SVI)?
(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
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.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

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

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32. How do you create a trunk on the router side?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
voice register pool|and|voice register dn

33. 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)
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
#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

34. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
It's best to strip digits at the voice port.
Service Parameters --> Mobile Voice Access Number
Apply voice-class codec

35. What dtmf-relay type do you use for an H323 GW?
voice register pool|and|voice register dn
CUCM OS Administration Settings --> NTP Servers
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Dtmf-relay h245-alpha

36. How do you configure CUCM redundancy on an H323 gateway?
'Use before the ... so XXXX
#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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Show ccm-manager

37. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
At the CLI: utils ntp status
#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
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.
voice register pool|and|voice register dn

38. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
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
'Service Parameters --> Auto Answer Timer
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 ....
Top Down means that channel 1 will be the first channel used to place outgoing calls.

39. What does ccm-manager config server [IP]</ip> do?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Automatically configures the MGCP GW for you.

40. How do you configure CUBE?

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41. What are the commands to set up the PRI?

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42. How do do configure TEHO?
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
Max-dn|max-ephone|ip source-address
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
Apply it to the ephone.

43. 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
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.
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

44. What must you do for a BACD script to work on a CME router?
Dial-peers
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

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

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

To notify SIP Phones of NTP

47. How do you enable Extension Mobility for a device in CME?
Via the voice hunt-group parallel command
Allows you to transfer by only pressing the Transfer button once.
Assign a logout-profile to the ephone.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

48. How do you use an ephone template?
(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
Apply it to the ephone.
Bottom up - to prevent glare.
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. How do you block calls under call-manager-fallback?
#after-hours block pattern
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.
Bandwidth
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

50. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
...
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify