What is the difference between Call Forwarding and Call Transfer??
Call Forwarding --> Call forwarding allows you to send all your incoming calls on your IP Phone to other IP Phone. --> Call forwarded to another number without pressing any button on the IP Phone. --> Call can be forwarded to another number in the following cases 1) Bus…
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Introduction to Voice Gateway
--> Voice Gateway is a component in VOIP solution used to connect IP Network with the PSTN Network. --> The Voice Gateways are used for forwarding calls when the internal IP Phone has to communicate with the PSTN and private branch exchanges (PBXs), analog phones, fax mach…
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What is the use of Device Pack in CUCM?
--> A device pack allows you to configure new IP Phone types to Cisco Unified Communication Manager. --> A device pack also allows you to upgrade the software and related configuration files which are needed to enable particular features on Cisco IP Phones. --> Device p…
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What is LDAP Authentication in CUCM?
--> End-user passwords are authenticated against the LDAP Server such as Active Directory. --> End-user passwords are managed and stored in LDAP Server. --> If you want to change the Password of the end user then it must be changed on the LDAP server. --> Cisco DirSY…
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Introduction to Cisco Unity Expres
--> Router Based Solution for providing voice mailboxes to the users. --> Provides support maximum upto 500 Mailboxes. --> Cisco Unity Express can be integrated with ISR Routers. --> Suited for Small to Medium size business. --> Provides support maximum upto 32 Po…
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Third Party IP Phone Support on CUCM
--> CUCM supports two categories of RFC 3261-compliant third-party SIP phones. --> Two different types of third-party SIP phones can be added to CUCM. --> Third-party SIP phones may be added as basic or advanced phones. --> Basic Third-Party SIP Phones support only o…
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What is BAT tool in CUCM?
--> Bulk Administration Tool (BAT) is a Web Application tool that allows you to perform adding, updating, deleting and changes to large groups of devices in the network. --> With the help of Bulk Administration Tool (BAT), we can add IP Phones or Voice Gateways or Users or…
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What is Forced Authorization Codes in CUCM ?
--> Forced Authorization Codes (FAC) is another method of implementing call restriction in Voice networks. --> Forced Authorization Codes (FAC) requires a user to enter a code or PIN before to the call being connected. --> Forced Authorization Codes (FAC) restrict outgo…
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What is CUCM Group?
--> CUCM Group Provides redundancy of Call Processing Servers. --> CUCM group Specifies a list of Call Processing servers on which an IP Phone can register. --> CUCM group contains the maximum of 3 servers. The first one in the CUCM Group is called as the Primary Server…
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What is the difference between Partition and Calling Search Space?
--> Partitions and Calling Search Spaces are primarily used to implement call of control in CUCM. --> Partition and Calling Search Spaces are used to block or allow users making certain calls. --> A partition is a group of Directory numbers with same accessibility. --&…
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What is the difference between Region and Location in CUCM?
--> Regions specifies the type of compression or bit rate can be used for voice and video calls between IP Phones. --> It can be 8 kbps or G.729, 64 kbps or G.722/G.711, and so forth that is used on the link. --> Locations specifies the amount of bandwidth can be use…
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What is Intercom
--> Intercom is a type of phone line, combines the functionality of a traditional line and a speed dial. --> The intercom feature allows a user to make an instant connection to another phone by pressing a single button. --> Intercom allows a user to place a call to a pr…
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What is CDR and CMR?
--> Cisco Unified Communications Manager creates two types of records which store call history and diagnostic information. 1) Call detail records (CDR)— Data records that contain information about each call that was processed by CallManager. 2) Call management records (CMR)— …
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Different methods of providing power to IP Phones
--> IP Phone requires power in order to operate, it can get power from following three methods, 1) Power Cord --> Local Power Adapter is used to provide the power to IP Phones. --> This method is used when the switch does not have POE capability. --> The problem with…
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What is Call Pickup?
--> Call Pickup allows you to answer another ringing phone in the organization from your phone. --> When a member of the group receives a call and is not available to answer it, any other member of the group can pick up the call from his own phone by using the PickUp softk…
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What is Call Parking?
--> Normally when you put the call on hold, you can retrieve the call from the original phone where you placed the call on hold. --> The call park feature allows a user to place a call on hold so that it can be retrieved from another telephone in the CUCM cluster. --> T…
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How to Perform Call Manipulations in CME ??
Prefix-Digits --> The Prefix Digits command allows the voice gateway to add a prefix at the beginning of a dialed number. --> For example, if someone dials 505555120, we can ensure that the router actually calls the 91505555120(Prefix Digit:91). --> Any digits that can …
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What is the difference between EPhone-DN and EPhone in Cisco IP Phones?
EPhone-DN --> An Ephone-DN or Ethernet Phone Directory Number represents a phone line. --> A number will be assigned to EPhone-DN. Users then will be able to use this number to call another. --> EPhone-DN can be Single Line or Dual Line. --> By using a Single-Line EP…
Read moreWhat is COR?
--> Class of Restriction is the feature used in CME to implement calling restrictions on the VoIP Users. --> Class of Restriction(COR) feature is similar to Calling Search Spaces and Partition in CUCM. --> Each dial-peer can be provisioned with an incoming and an outgoi…
Read moreWhat is Inbound Dial Peers?
--> Outbound dial peers are used for outgoing VoIP calls whereas Inbound dial peers are used for Incoming VoIP calls on Voice Gateway. --> The configuration of outbound dial peers is very easy as we use the destination-pattern command to match the dial peer. --> But the…
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