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CCIE Voice Test

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Answer 50 questions in 15 minutes.
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1. What dtmf-relay type do you use for an H323 GW?
'Use before the ... so XXXX
#voice service voip| #no supplementary-service h225-notify cid-update
24kb/s
Dtmf-relay h245-alpha

2. 'How do you inform a SIP phone of NTP information?
Single Number Reach (Mobile Connect)
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
...
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

3. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Apply voice-class codec
#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.

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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Apply voice-class codec
...
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

5. What is Mobile Voice Access?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Service Parameter --> Block OffNet To OffNet Transfer --> True
#test voice translation rule 1 <input to test>
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

6. 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?
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)
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

7. What are the commands to configure NTP in IOS?
#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
Mobile Voice Access
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.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

8. What are the 3 mandatory commands within call-manager-fallback?
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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Max-dn|max-ephone|ip source-address
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

9. What are the commands to create the L3 routing interface for VLANS (SVI)?
SIP Dial Rules
Auto Call Pickup Enabled
Mobile Voice Access
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

10. What are the commands to create vlans on an ESW?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
When configuring TEHO.

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

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12. How is NTP sych setup in CUCM?
CUCM OS Administration Settings --> NTP Servers
Via the voice hunt-group parallel command
Sh ip rsvp reservation||sh sccp connections
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

13. 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?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
sh ephone reg|and|debug voip dialpeer
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.
In the CUCM 7.0.1 Release Notes ... search for restore.

14. What is a best practice for digit manipulation - in regards to H323 GWs?
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 - Partitions and Calling Search Spaces||CME - COR Lists
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SIP Route Pattern over a SIP Trunk.

15. 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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Assign SIP Dial Rules
Apply it to the ephone.

16. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
#test voice translation rule 1 <input to test>
Apply voice-class codec
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

17. If you're using Called/Calling Party Transformations at the Route Pattern and tranformations at the route list ... What does the RP affect and What does the RL affect?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Automatically configures the MGCP GW for you.
At the CLI: utils ntp status

18. How do you prevent H323 caller-id updates to CUCM
#voice service voip| #no supplementary-service h225-notify cid-update
(config)#sh cdp neigh detail
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

19. How do you configure CUBE?

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20. How do you set the inter-digit timeout for SIP phones in CME?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
CUCM Service Parameters --> Call Park Reversion Timer
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
(config)#voice register dialplan

21. Two useful troubleshooting commands for CUCME?
sh ephone reg|and|debug voip dialpeer
Sends the Calling Name.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

22. 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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

23. What must you do for a BACD script to work on a CME router?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Assign SIP Dial Rules
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
24kb/s

24. How do you configure a SIP Trunk? (router side)
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
(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
At the CLI: utils ntp status
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.

25. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Re-enter the mgcp bind control and mgcp bind media commands.
1 ... this is not optional!
Precede the # with a > ... so 9011*>#

26. What is the bit rate for a G.729 call excluding layer 2?
Mobile Voice Access
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
8kb/s
Outbound dial-peers

27. How do you set up redundancy on outbound dial-peers on an H323 gateway?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Master/Slave relationship. CUCM controls it.

28. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager
(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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

29. What is call-forward pattern used for?
24kb/s
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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.

30. When can you not use a Standard Local Route Group?
Max-dn|max-ephone|ip source-address
Assign SIP Dial Rules
When configuring TEHO.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

31. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Configure it on the route group through the route list - then it will be local to the route list.
Outbound dial-peers
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

32. How do you verify that NTP is working on the CUCM server?
Apply voice-class codec
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Assign SIP Dial Rules
At the CLI: utils ntp status

33. How do you enable AAR?
Single Number Reach (Mobile Connect)
#voice service voip| #no supplementary-service h225-notify cid-update
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Master/Slave relationship. CUCM controls it.

34. What are the commands to configure a MGCP Gateway? (router)
Bandwidth
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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

35. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
Service Parameter --> Block OffNet To OffNet Transfer --> True
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

36. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

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37. On the RDP What is the Rerouting CSS used for?
Single Number Reach (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!
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Assign a logout-profile to the ephone.

38. What is CSIM?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Mobile Voice Access
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Call Simulator. You can use to validate path from router to the PSTN.

39. Describe how you configure SIP URI functionality.

The name configuration field in ephone-dn and voice register dn
'Service Parameters --> Auto Answer Timer
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

40. 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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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.
Mobile Connect
...

41. How do you configure phone ports on a 3750?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Debug isdn q931

42. How do you create a trunk on the switch side?
Apply voice-class codec
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
In CUCM - configure CFUR to point to it's E164 number.
Ccm-manager music-on-hold

43. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
...
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
In the CUCM 7.0.1 Release Notes ... search for restore.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

44. How do you configure DHCP in IOS?
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
(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
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.

45. What are two caveats to using the ccm-manager config server</ip> command?

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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

46. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
8kb/s
Bottom up - to prevent glare.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

47. How do you change modes in voice register global?
1 ... this is not optional!
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Auto Call Pickup Enabled
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

48. How would you enable security on a GK?
Put them in a route list.
Max-dn|max-ephone|ip source-address
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Debug isdn q931

49. What are the steps to configure Single Number Reach and Mobile Voice Access?
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Automatically configures the MGCP GW for you.

50. What does rule 1 /^.*(....$)/ /1/ do?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Matches any length dialed number and truncates it to 4 digits.
sh ephone reg|and|debug voip dialpeer
At the CLI: utils ntp status

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