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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. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Reroute when here is WAN congestion.
#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
SIP Route Pattern over a SIP Trunk.
1 ... this is not optional!

2. How do you change modes in voice register global?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Bandwidth
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
CUCM Service Parameters --> Call Park Reversion Timer

3. 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
'Use before the ... so XXXX
Max-dn|max-ephone|ip source-address
...
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

4. What is call-forward pattern used for?
Outbound dial-peers
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Call forwarding between voip to voip (when CUBE is in play)
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

5. What would force you to use telephony-service to configure SRST?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
#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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Dial-peers

6. '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
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
...
voice translation-profile|and|voice translation-rule
Dial-peers

7. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
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 PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Max-dn|max-ephone|ip source-address

8. How do you configure class of service (CoS) in CUCM? CME?
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 here is WAN congestion.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

9. What's the difference between AAR and SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Sh ccm-manager
Bandwidth
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

10. What CUCM services should you activate?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

11. Describe the relationship between route patterns and end devices.
Automatically configures the MGCP GW for you.
#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
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.

12. How do you configure DHCP in IOS?
Sh ip rsvp reservation||sh sccp connections
(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
TRUE
Debug isdn q931

13. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Service Parameters --> Mobile Voice Access Number
...
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Bottom up - to prevent glare.

14. What are the commands to configure an H323 GW?
#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
(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
(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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

15. How do you enable AAR system wide?
On CUCM it's identical to adding an H323 GW.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
(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)#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

16. On the RDP What is the Rerouting CSS used for?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Single Number Reach (Mobile Connect)
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Via the voice hunt-group parallel command

17. How do you use the # as a string terminator within a SIP Dial Rule?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Precede the # with a > ... so 9011*>#
Outbound dial-peers
Bandwidth

18. How do you configure phone ports on a 3750?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

Sh ip rsvp reservation||sh sccp connections
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

19. When can you not use a Standard Local Route Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Reroute when here is WAN congestion.
When configuring TEHO.
voice translation-profile|and|voice translation-rule

20. How do you use an ephone template?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Apply it to the ephone.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Apply voice-class codec

21. How do you disable KPML?
Allows you to transfer by only pressing the Transfer button once.

Call-manager-fallback or telephony-service mode SRST
Assign SIP Dial Rules

22. Two useful troubleshooting commands for CUCME?
#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
(config)#sh cdp neigh detail
Higher
sh ephone reg|and|debug voip dialpeer

23. How do you configure CUBE?

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24. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> Call Park Reversion Timer
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Re-enter the mgcp bind control and mgcp bind media commands.
(config)#sh cdp neigh detail

25. What dtmf-relay type do you use for an H323 GW?
Debug ephone moh
Dtmf-relay h245-alpha
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
Call-manager-fallback or telephony-service mode SRST

26. How do you enable AAR?
Service Parameter --> Block OffNet To OffNet Transfer --> 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.
(config)#voice register dialplan
SERVICE PARAMETER> Automated Alternate Routing Enable > True

27. How do you configure phone ports on an ESW?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
(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
Service Parameter --> Block OffNet To OffNet Transfer --> True
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

28. How do you allow the Calling Name to be sent to the PSTN on a router?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
(config)#sh cdp neigh detail
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

29. What are the 3 mandatory commands within call-manager-fallback?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Max-dn|max-ephone|ip source-address
#voice service voip| #no supplementary-service h225-notify cid-update
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

30. When are digits stripped in a gateway?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
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.
...
When they are explicitly matched in a destination-pattern in a dial-peer.

31. What are the base telephony-service commands for CME?
#test voice translation rule 1 <input to test>
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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.

32. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
(config)#sh cdp neigh detail
Re-enter the mgcp bind control and mgcp bind media commands.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Service Parameters --> Mobile Voice Access Number

33. What do you need to do to activate the CME GUI?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

34. Privacy is enabled system-wide in CUCM by default. (T or F)
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Max-dn|max-ephone|ip source-address
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
TRUE

35. If you're using Called/Calling Party Transformations at the Route Pattern and tranformations at the route list ... What does the RP affect and What does the RL affect?
Higher
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

36. What is Mobile Voice Access?
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

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?
Show ccm-manager
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 (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

38. How do you prevent toll fraud on CME?
The name configuration field in ephone-dn and voice register dn
Ccm-manager music-on-hold
(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
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 ....

39. What does ccm-manager config server [IP]</ip> do?
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
Automatically configures the MGCP GW for you.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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.

40. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Debug ephone moh
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Sh ccm-manager
Mobile Voice Access

41. How do you set the inter-digit timeout for SIP phones in CME?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Debug isdn q931
(config)#voice register dialplan
CUCM Service Parameters --> Call Park Reversion Timer

42. Calls coming from CUCM to PSTN need what?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Outbound dial-peers
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

43. 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?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
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)
At the CLI: utils ntp status
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

44. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
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.
1 ... this is not optional!
Sh ccm-manager
The Called/Calling Transformations are superceded.

45. What does rule 1 /^.*(....$)/ /1/ do?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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
Matches any length dialed number and truncates it to 4 digits.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

46. What are the basic ephone-dn and ephone commands?
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Allows you to transfer by only pressing the Transfer button once.

47. 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
Mobile Connect
voice register pool|and|voice register dn
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

48. How would you set the the timer for Auto Answer?

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49. Does CUCM support RSVP natively?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
24kb/s
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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

50. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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)
#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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Ccm-manager music-on-hold