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CCIE Voice Test

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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 is NTP sych setup in CUCM?
#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
#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
CUCM OS Administration Settings --> NTP Servers
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

2. Name 4 useful show commands for active calls.
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.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Matches any length dialed number and truncates it to 4 digits.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

3. How do you test a Voice Translation Rule?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
#test voice translation rule 1 <input to test>
When they are explicitly matched in a destination-pattern in a dial-peer.
IP Voice Media Streaming App

4. What does rule 1 /^.*(....$)/ /1/ do?
(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
'Use before the ... so XXXX
Matches any length dialed number and truncates it to 4 digits.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

5. How do you place SCCP and SIP phones into a single huntgroup?
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
Via the voice hunt-group parallel command
SIP Dial Rules
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

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

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7. 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
Ccm-manager music-on-hold
SIP Dial Rules
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

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

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9. How do you configure class of service (CoS) in CUCM? CME?
Sends the Calling Name.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
When configuring TEHO.

10. What is a best practice for digit manipulation - in regards to H323 GWs?
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

11. When a CUCM device dials a number - what happens?
#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
On CUCM it's identical to adding an H323 GW.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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 .)

12. What are the commands to manually configure an MGCP gateway?
When configuring TEHO.
#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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Ccm-manager music-on-hold

13. How do you setup AutoRegistration in CUCM?
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.
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

14. 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?
In the CUCM 7.0.1 Release Notes ... search for restore.
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)
(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
#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

15. On the RDP What is the CSS used for?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
(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
Mobile Voice Access
24kb/s

16. What are two caveats to using the ccm-manager config server</ip> command?
Configure it on the route group through the route list - then it will be local to the route list.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

17. 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> Automated Alternate Routing Enable > True
Matches any length dialed number and truncates it to 4 digits.
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

18. How do you prioritize route groups?
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
Put them in a route list.

19. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Configure it on the route group through the route list - then it will be local to the route list.
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
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
SIP Route Pattern over a SIP Trunk.

20. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
#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
CUCM Service Parameters --> Call Park Reversion Timer

21. What types of digit manipulation can you perform at the route pattern?
Call forwarding between voip to voip (when CUBE is in play)
Apply it to the ephone.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Re-enter the mgcp bind control and mgcp bind media commands.

22. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
Call forwarding between voip to voip (when CUBE is in play)
...
Apply it to the ephone.

23. What do you need to do to activate the CME GUI?
Reroute when there is a WAN Outage.
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.
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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

24. What does ccm-manager config server [IP]</ip> do?
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
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Automatically configures the MGCP GW for you.

25. How do you set the Call Park Reversion Timer?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
CUCM Service Parameters --> Call Park Reversion Timer
At the CLI: utils ntp status

26. What are the 3 mandatory commands within call-manager-fallback?
Reroute when here is WAN congestion.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Max-dn|max-ephone|ip source-address
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

27. With the gw-priority command - does higher or lower priority take precedence?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Top Down means that channel 1 will be the first channel used to place outgoing calls.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Higher

28. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Dial-peers
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
Sh ccm-manager
SIP Dial Rules

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

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30. What are the steps to integrate CUPS with CUCM?

Assign a logout-profile to the ephone.
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

31. 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?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
To enable two-stage dialing.
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.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

32. 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
Single Number Reach (Mobile Connect)
(config)#voice register dialplan
Mobile Connect

33. An MGCP gateway serving as an SRST router requires what?
Assign SIP Dial Rules
It's best to strip digits at the voice port.
Max-dn|max-ephone|ip source-address
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

34. What terminology translates to AAR?
Automatically configures the MGCP GW for you.
Reroute when here is WAN congestion.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

35. What kind of relationship does an MGCP gateway have with CUCM?
voice translation-profile|and|voice translation-rule
24kb/s
Master/Slave relationship. CUCM controls it.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

36. When do you do digit manipulation at the route pattern as opposed to the route list?
Call forwarding between voip to voip (when CUBE is in play)
When multiple sites use the same route pattern - do your digit manipulation on a route list.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
8kb/s

37. What are the commands to configure a T1/E1 PRI?
(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
Re-enter the mgcp bind control and mgcp bind media commands.
8kb/s
Call Simulator. You can use to validate path from router to the PSTN.

38. When setting up SIP URI where do you configure the CUCM's domain name?'
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
'Service Parameters --> Auto Answer Timer
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

39. When are digits stripped in a gateway?
(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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
When they are explicitly matched in a destination-pattern in a dial-peer.
TRUE

40. What commands are needed to configure the voice register pool in CME?
Sh ccm-manager
Sends the Calling Name.
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
#after-hours block pattern

41. Which takes precedence Device Locations or Device Pool Locations?
...
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
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.
Device Pool Locations

42. 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.
Via the voice hunt-group parallel command
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
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 .)

43. 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
Master/Slave relationship. CUCM controls it.
Call Simulator. You can use to validate path from router to the PSTN.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

44. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

SIP Dial Rules
Service Parameters --> Mobile Voice Access Number

45. What are the basic SCCP Commands fro telephony-service in CUCME?
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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Mobile Connect

46. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
(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
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

47. 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
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Reroute when here is WAN congestion.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

48. '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.
Call Simulator. You can use to validate path from router to the PSTN.
Outbound dial-peers
#voice service voip| #no supplementary-service h225-notify cid-update

49. How do you support multiple codecs on a dialpeer?
Auto Call Pickup Enabled
Apply voice-class codec
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 ....
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

50. On an MGCP GW - how could you see the primary and backup CUCM servers?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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
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
Show ccm-manager

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CCIE Voice Test

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