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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. What terminology translates to SRST?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Max-dn|max-ephone|ip source-address
Reroute when there is a WAN Outage.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

2. What should you configure before entering auto qos?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Bandwidth
24kb/s
Re-enter the mgcp bind control and mgcp bind media commands.

3. How do you allow the Calling Name to be sent to the PSTN on a router?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
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.
CUCM OS Administration Settings --> NTP Servers
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

4. '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
...
At the CLI: utils ntp status
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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

5. What are the commands to configure SRST in fallback?
Mobile Voice Access
Allows you to transfer by only pressing the Transfer button once.
#after-hours block pattern
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

6. How do you set the Call Park Reversion Timer?
#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
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 ....
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
CUCM Service Parameters --> Call Park Reversion Timer

7. What is Mobile Voice Access?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

8. How do you configure DHCP in IOS?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
voice register pool|and|voice register dn
(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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

9. 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
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
(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
Automatically configures the MGCP GW for you.
...

10. How do you configure AAR?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Phone number followed by domain name.|i.e. 3006@ipxcme.com
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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.

11. How do you use the # as a string terminator within a SIP Dial Rule?
Device Pool Locations
Precede the # with a > ... so 9011*>#
(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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

12. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
The name configuration field in ephone-dn and voice register dn
Precede the # with a > ... so 9011*>#
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

13. When a CUCM device dials a number - what happens?
Configure it on the route group through the route list - then it will be local to the route list.
Re-enter the mgcp bind control and mgcp bind media commands.
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 .)
#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

14. On an MGCP GW - how could you see the primary and backup CUCM servers?
...
Outbound dial-peers
Show ccm-manager
Higher

15. What do you need to do to activate the CME GUI?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
SIP Route Pattern over a SIP Trunk.

16. In Gatekeeper CAC how do you restrict a specific endpoint?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Sends the Calling Name.

17. When do you do digit manipulation at the route pattern as opposed to the route list?
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
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Automatically configures the MGCP GW for you.
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 ....

18. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
The Called/Calling Transformations are superceded.

19. What does Display-IE do?
Sends the Calling Name.
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
Top Down means that channel 1 will be the first channel used to place outgoing calls.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

20. How can you confirm the MGCP GW is registered to CUCM - in IOS?
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
sh ephone reg|and|debug voip dialpeer
Sh ccm-manager

21. Is the order of the MRGs in an MRGL significant?

CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Mobile Voice Access

22. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Reroute when here is WAN congestion.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

23. Name 4 useful show commands for active calls.
Bandwidth
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Configure it on the route group through the route list - then it will be local to the route list.
Allows you to transfer by only pressing the Transfer button once.

24. How do do configure TEHO?
Bottom up - to prevent glare.
Configure it on the route group through the route list - then it will be local to the route list.
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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

25. Where do you use VIA zone?
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
To notify SIP Phones of NTP
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
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

26. Privacy is enabled system-wide in CUCM by default. (T or F)
Dial-peers
Mobile Connect
TRUE
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

27. When are digits stripped in a gateway?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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.
Bottom up - to prevent glare.

28. How do you test a Voice Translation Rule?

#test voice translation rule 1 <input to test>
Phone number followed by domain name.|i.e. 3006@ipxcme.com
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

29. An MGCP gateway serving as an SRST router requires what?
Apply voice-class codec
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

30. How do you create a trunk on the router side?
Reroute when here is WAN congestion.
Dial-peers
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
...

31. What are the commands to configure an H323 GW?
Reroute when there is a WAN Outage.
#test voice translation rule 1 <input to test>
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
#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

32. How would you enable security on a GK?
Device Pool Locations

(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

33. What are the commands to configure a T1/E1 PRI?
#voice service voip| #no supplementary-service h225-notify cid-update

Put them in a route list.
(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

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

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35. How do you configure phone ports on a 3750?
(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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Dtmf-relay h245-alpha
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

36. How do you allow H323 calls to be preserved should the primary H323 GW fail?
#voice service voip| #no supplementary-service h225-notify cid-update

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#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

37. What is the full E164 format?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

38. What's the difference between AAR and SRST?
#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
To enable two-stage dialing.
Via the voice hunt-group parallel command

39. How do you place SCCP and SIP phones into a single huntgroup?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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 ....
Via the voice hunt-group parallel command
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

40. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

41. How do you configure SRST?
Bottom up - to prevent glare.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Call-manager-fallback or telephony-service mode SRST
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

42. How would you verify that DHCP is working in IOS?
(config)#sh cdp neigh detail
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 they are explicitly matched in a destination-pattern in a dial-peer.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

43. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
...
Debug ephone moh
Top Down means that channel 1 will be the first channel used to place outgoing calls.
(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

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

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45. What are the steps to configure Single Number Reach and Mobile Voice Access?

Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
voice translation-profile|and|voice translation-rule

46. On the RDP What is the Rerouting CSS used for?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Single Number Reach (Mobile Connect)
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

47. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
'Service Parameters --> Auto Answer Timer
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

48. How do you get around relying on DNS for your CUCMs?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
...
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

49. When can you not use a Standard Local Route Group?
When configuring TEHO.
Mobile Connect
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
#after-hours block pattern

50. 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?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Device Pool Locations
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
(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

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