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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 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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
(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
#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

2. How do you test a Voice Translation Rule?
#test voice translation rule 1 <input to test>
(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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Show ccm-manager

3. Is the order of the MRGs in an MRGL significant?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
...
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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

4. Maximum Wait Time for Desk Pickup?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

5. When using drop-through-option What is the max number of huntgroups?
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
Debug isdn q931
1 ... this is not optional!
To notify SIP Phones of NTP

6. How do you use the # as a string terminator within a SIP Dial Rule?
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.
Precede the # with a > ... so 9011*>#
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

7. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
Single Number Reach (Mobile Connect)
To notify SIP Phones of NTP

8. What does KPML do?
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 .)
#after-hours block pattern
To notify SIP Phones of NTP
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

9. Privacy is enabled system-wide in CUCM by default. (T or F)
Assign SIP Dial Rules
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
TRUE

10. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Service Parameters --> Mobile Voice Access Number
Debug ephone moh
SIP Route Pattern over a SIP Trunk.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

11. What does rule 1 /^.*(....$)/ /1/ do?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
To enable two-stage dialing.
Matches any length dialed number and truncates it to 4 digits.

12. In CME Where is the Calling Name derived from?
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 .)
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
On CUCM it's identical to adding an H323 GW.
The name configuration field in ephone-dn and voice register dn

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

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14. What terminology translates to SRST?

Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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
Reroute when there is a WAN Outage.

15. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Outbound dial-peers
Ccm-manager music-on-hold

16. What are two caveats to using the ccm-manager config server</ip> command?
To enable two-stage dialing.

AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Reroute when there is a WAN Outage.

17. 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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True

18. On the RDP What is the Rerouting CSS used for?
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
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Single Number Reach (Mobile Connect)

19. How do you configure SRST?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Call-manager-fallback or telephony-service mode SRST

20. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Call forwarding between voip to voip (when CUBE is in play)
Bottom up - to prevent glare.
#voice service voip| #no supplementary-service h225-notify cid-update
To enable two-stage dialing.

21. What does the Transfer On-hook Enabled Service Parameter do?
Dtmf-relay h245-alpha
Allows you to transfer by only pressing the Transfer button once.
On CUCM it's identical to adding an H323 GW.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

22. Calls coming from CUCM to PSTN need what?
(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
#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
Outbound dial-peers
Top Down means that channel 1 will be the first channel used to place outgoing calls.

23. Where can you assign the AAR Group?
To enable two-stage dialing.
Ccm-manager music-on-hold
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

24. How do you disable KPML?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Assign SIP Dial Rules

25. Describe how you configure SIP URI functionality.
When they are explicitly matched in a destination-pattern in a dial-peer.
To enable two-stage dialing.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

26. On the RDP What is the CSS used for?
Reroute when here is WAN congestion.
Mobile Voice Access
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.
(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

27. What is the bit rate for a G.729 call excluding layer 2?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
8kb/s
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

28. When do you use translate called? Translate calling?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
CUCM OS Administration Settings --> NTP Servers
#voice service voip| #no supplementary-service h225-notify cid-update
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

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

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30. Where do you use VIA zone?
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 dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Service Parameters --> Mobile Voice Access Number
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)

31. How do you prioritize route groups?
Apply it to the ephone.
Put them in a route list.
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

32. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Sh ccm-manager
Debug ephone moh
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

33. How do you configure CUBE?

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34. What must you do for a BACD script to work on a CME router?
...
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
To notify SIP Phones of NTP
Single Number Reach (Mobile Connect)

35. What does an H323 GW require that MGCP GWs do not?
#after-hours block pattern
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Service Parameter --> Block OffNet To OffNet Transfer --> True
Dial-peers

36. When do you do digit manipulation at the route pattern as opposed to the route list?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
'Use before the ... so XXXX
Apply it to the ephone.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

37. An MGCP gateway serving as an SRST router requires what?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

38. What are the commands to configure an H323 GW?
Debug ephone moh
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#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

39. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
On CUCM it's identical to adding an H323 GW.
Precede the # with a > ... so 9011*>#
Mobile Voice Access

40. SNR is also known as?
To notify SIP Phones of NTP
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Mobile Connect
Bandwidth

41. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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
(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

42. 'If you want to make changes to any softkeys where do you do it?

Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

43. How do you configure phone ports on an ESW?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
'Use before the ... so XXXX
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

44. How do you prevent toll fraud on CME?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

45. What types of digit manipulation can you perform at the route pattern?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
SIP Route Pattern over a SIP Trunk.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
CUCM OS Administration Settings --> NTP Servers

46. How do you prevent H323 caller-id updates to CUCM
In the CUCM 7.0.1 Release Notes ... search for restore.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
#voice service voip| #no supplementary-service h225-notify cid-update

47. What terminology translates to AAR?
Reroute when here is WAN congestion.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
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

48. What are the commands to create the L3 routing interface for VLANS (SVI)?
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
Bandwidth
Matches any length dialed number and truncates it to 4 digits.
Via the voice hunt-group parallel command

49. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
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
Dtmf-relay h245-alpha
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
1 ... this is not optional!

50. How is NTP sych setup in CUCM?
(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
CUCM OS Administration Settings --> NTP Servers
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
TRUE

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CCIE Voice Test

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