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

2. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
(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
At the CLI: utils ntp status
When they are explicitly matched in a destination-pattern in a dial-peer.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

3. How do you test a Voice Translation Rule?
Device Pool Locations
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
voice translation-profile|and|voice translation-rule
#test voice translation rule 1 <input to test>

4. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Phone number followed by domain name.|i.e. 3006@ipxcme.com
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

5. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
(config)#sh cdp neigh detail
On CUCM it's identical to adding an H323 GW.
At the CLI: utils ntp status

6. What are the commands to configure a SIP phone in CUCME?
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
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
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.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

7. How do you enable AAR?
Dtmf-relay h245-alpha
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
voice translation-profile|and|voice translation-rule

8. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Apply voice-class codec
voice translation-profile|and|voice translation-rule
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

9. What kind of relationship does an MGCP gateway have with CUCM?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Master/Slave relationship. CUCM controls it.
Bottom up - to prevent glare.
Dtmf-relay h245-alpha

10. What terminology translates to SRST?
Reroute when there is a WAN Outage.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
The name configuration field in ephone-dn and voice register dn
Matches any length dialed number and truncates it to 4 digits.

11. What CUCM services should you activate?
(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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

12. 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 os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
Phone number followed by domain name.|i.e. 3006@ipxcme.com
...
In the CUCM 7.0.1 Release Notes ... search for restore.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

13. Where is it best to manipulate digits for inbound calls?

14. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Reroute when there is a WAN Outage.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
To enable two-stage dialing.

15. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
TRUE
In the CUCM 7.0.1 Release Notes ... search for restore.
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.

16. 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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
...
Dtmf-relay h245-alpha
Re-enter the mgcp bind control and mgcp bind media commands.

17. How would you verify that DHCP is working in IOS?
(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

Sends the Calling Name.
(config)#sh cdp neigh detail

18. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
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 translation-profile|and|voice translation-rule
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Bottom up - to prevent glare.

19. How do you configure CUBE?

20. 'If you want to make changes to any softkeys where do you do it?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
(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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

21. '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
Re-enter the mgcp bind control and mgcp bind media commands.
Service Parameters --> Mobile Voice Access Number
...
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

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

23. When do you use translate called? Translate calling?
Max-dn|max-ephone|ip source-address
Debug ephone moh
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)

24. Calls coming from CUCM to PSTN need what?
voice register pool|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)
Outbound dial-peers
Bottom up - to prevent glare.

25. When can you not use a Standard Local Route Group?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
24kb/s
Call forwarding between voip to voip (when CUBE is in play)
When configuring TEHO.

26. How do you setup AutoRegistration in CUCM?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
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
#test voice translation rule 1 <input to test>
Put them in a route list.

27. What must you do for a BACD script to work on a CME router?
(config)#voice register dialplan
Assign a logout-profile to the ephone.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

28. What is the Enable Enterprise Feature Access Service Parameter used for?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
To enable two-stage dialing.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

29. How do you see multicast packets being sent?
Debug ephone moh
Single Number Reach (Mobile Connect)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Reroute when here is WAN congestion.

30. What does an H323 GW require that MGCP GWs do not?
Dial-peers
Debug isdn q931
'Service Parameters --> Auto Answer Timer
Reroute when there is a WAN Outage.

31. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Max-dn|max-ephone|ip source-address
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
#test voice translation rule 1 <input to test>

32. How do you see the details of calls coming in and out of the PRI?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Debug isdn q931
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#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

33. What are the commands to configure a MGCP Gateway? (router)
Debug isdn q931
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
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
To enable two-stage dialing.

34. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

35. How do you get around relying on DNS for your CUCMs?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

36. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
The Called/Calling Transformations are superceded.
(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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
(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

37. 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.
#after-hours block pattern
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

38. When setting up SIP URI where do you configure the CUCM's domain name?'
Debug ephone moh
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain 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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

39. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
...
Assign SIP Dial Rules
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Reroute when there is a WAN Outage.

40. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
To enable two-stage dialing.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#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

41. What is the bit rate for a G.729 call excluding layer 2?
...
Call Simulator. You can use to validate path from router to the PSTN.
Re-enter the mgcp bind control and mgcp bind media commands.
8kb/s

42. How do you configure phone ports on a 3750?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Debug isdn q931
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

43. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
(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
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
SIP Dial Rules
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

44. How do you disable KPML?
Assign SIP Dial Rules
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.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

45. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
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.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

46. 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
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
...
#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

47. How do you configure a SIP Trunk? (router side)
(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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
sh ephone reg|and|debug voip dialpeer
1 ... this is not optional!

48. What is the Service Parameter to allow the phone that is picking ip to auto answer?
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
voice register pool|and|voice register dn
Auto Call Pickup Enabled
Apply voice-class codec

49. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
The Called/Calling Transformations are superceded.

50. What are the commands to manually configure an MGCP gateway?
...
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#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> Automated Alternate Routing Enable > True