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CCIE Voice Test

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Answer 50 questions in 15 minutes.
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1. Calls coming from CUCM to PSTN need what?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In the CUCM 7.0.1 Release Notes ... search for restore.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Outbound dial-peers

2. How do you disable KPML?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Assign SIP Dial Rules
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
'Use before the ... so XXXX

3. 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
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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
Show ccm-manager

4. How do you set up redundancy on outbound dial-peers on an H323 gateway?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
#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

5. How do you create a trunk on the switch side?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Via the voice hunt-group parallel command
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
IP Voice Media Streaming App

6. How do you configure CUBE?

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7. What does Display-IE do?
Sends the Calling Name.
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)
Apply voice-class codec

8. 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.
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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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.

9. How do you create a trunk on the router side?
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
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
Sh ip rsvp reservation||sh sccp connections

10. What is the full E164 format?
Via the voice hunt-group parallel command
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Sends the Calling Name.
Bottom up - to prevent glare.

11. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
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.

12. On the RDP What is the Rerouting CSS used for?
Single Number Reach (Mobile Connect)
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. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
#voice service voip| #no supplementary-service h225-notify cid-update

13. How do you see multicast packets being sent?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Debug ephone moh

14. How is NTP sych setup in CUCM?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
CUCM OS Administration Settings --> NTP Servers
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
CUCM Service Parameters --> Call Park Reversion Timer

15. How do you place SCCP and SIP phones into a single huntgroup?
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
24kb/s
Mobile Voice Access

16. What dtmf-relay type do you use for an H323 GW?
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.
Dtmf-relay h245-alpha
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
To enable two-stage dialing.

17. How do you block calls under call-manager-fallback?
Assign SIP Dial Rules
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#after-hours block pattern
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

18. How do you prevent H323 caller-id updates to CUCM
Configure it on the route group through the route list - then it will be local to the route list.
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 service voip| #no supplementary-service h225-notify cid-update
Sends the Calling Name.

19. 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
...
'Use before the ... so XXXX
Allows you to transfer by only pressing the Transfer button once.

20. What are the commands to configure a MGCP Gateway? (router)
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

Call-manager-fallback or telephony-service mode SRST
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

21. How do you prioritize route groups?
Put them in a route list.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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 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

22. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Service Parameters --> Mobile Voice Access Number
Bottom up - to prevent glare.
Debug ephone moh

23. Does CUCM support RSVP natively?
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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

24. In CME Where is the Calling Name derived from?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
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
The name configuration field in ephone-dn and voice register dn
'Use before the ... so XXXX

25. What do you need to do to activate the CME GUI?

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

26. An MGCP gateway serving as an SRST router requires what?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Reroute when here is WAN congestion.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

27. What is a best practice for digit manipulation - in regards to H323 GWs?
Service Parameters --> Mobile Voice Access Number
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

28. 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?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Via the voice hunt-group parallel command
Apply it to the ephone.

29. How do you configure a gateway to register with gatekeeper?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Ccm-manager music-on-hold
#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

30. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Automatically configures the MGCP GW for you.
1 ... this is not optional!

31. 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)
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
'Use before the ... so XXXX

32. 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.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Call forwarding between voip to voip (when CUBE is in play)
Mobile Voice Access

33. What is the Service Parameter to allow the phone that is picking ip to auto answer?
#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
Call Simulator. You can use to validate path from router to the PSTN.
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
Auto Call Pickup Enabled

34. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
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
#after-hours block pattern

35. What are the commands to set up the PRI?

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36. How do you configure CUCM redundancy on an H323 gateway?
#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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

37. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
The name configuration field in ephone-dn and voice register dn
Put them in a route list.
Top Down means that channel 1 will be the first channel used to place outgoing calls.

38. What commands are needed to configure the voice register pool in CME?
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 > 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
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 multiple sites use the same route pattern - do your digit manipulation on a route list.

39. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
...
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

40. How do you configure DHCP in IOS?
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)
Top Down means that channel 1 will be the first channel used to place outgoing calls.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
(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

41. How do you block an external call from being transferred back out to the pstn by an internal user?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Service Parameter --> Block OffNet To OffNet Transfer --> True
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.
Single Number Reach (Mobile Connect)

42. How do you enable Extension Mobility for a device in CME?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
To enable two-stage dialing.
Assign a logout-profile to the ephone.
Device Pool Locations

43. 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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
...
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.

44. How do you configure AAR?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Show ccm-manager
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

45. What CUCM services should you activate?
Single Number Reach (Mobile Connect)
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.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
At the CLI: utils ntp status

46. What is call-forward pattern used for?
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)
Call forwarding between voip to voip (when CUBE is in play)
...
Debug isdn q931

47. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Outbound dial-peers
SIP Route Pattern over a SIP Trunk.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Mobile Connect

48. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
#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
Service Parameter --> Block OffNet To OffNet Transfer --> True
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

49. How do you configure phone ports on an ESW?
Outbound dial-peers
'Use before the ... so XXXX
Automatically configures the MGCP GW for you.
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

50. What are the commands to configure NTP in IOS?

#voice service voip| #no supplementary-service h225-notify cid-update
Auto Call Pickup Enabled
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

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CCIE Voice Test

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