Technical Glossary -- (Kurt Smith)

computer aided design

Call barring is a mobile phone feature that allows the user to set certain prohibitions on incoming or outgoing calls. This is an effective means to prevent the phone being used to make expensive international or premium rate calls, particularly when the phone is to be used by people other than the subscriber.

Many companies that provide for business use now employ call barring as a security measure, to control their use and restrict calls to pre-approved numbers. The user's personal code must be used to activate this feature

Call deflection is a selective call divert that allows a call to be forwarded without accepting it. Call deflection can either be invoked automatically by the mobile station, or by a network interaction. It is only supported within an ISDN call environment, and will only work as long as no call forwarding or divert limits have been met. Calls can be deflected to different numbers depending on the caller’s number, discovered by CLIP.

Call divert is a�handset feature that allows the user to forward or redirect all incoming calls to an alternate�number (fixed or mobile), or to voicemail. This is a facility with many advantages, enabling the user to be called on another phone or at a particular location, to have calls answered by somebody else, or to use a voicemail answering service. When this feature is activated the�number from which calls are forwarded will not ring or receive calls. Various options may be available to the user, allowing them to choose different phone numbers to divert to, depending on the circumstances. For example, calls may be diverted to one number when engaged (busy transfer), but another number or voicemail when the phone is switched off or the network unavailable.

Call holding is a phone feature that allows the user to put an ongoing call on hold, while at the same time making or receiving a second call on the same phone.

The person 'on hold' will not be aware of what the other party is doing during the call holding period, and they may be presented with silence or hear pre-recorded music and reassuring messages. This feature is convenient when a user needs to talk with two parties who should not talk directly (i.e. a conference call is not possible), which might arise when a mortgage broker is setting up a deal between a bank and a mortgager.

Call holding can also be used in conjunction with call waiting to allow two calls to be handled at once, so ensuring that important incoming calls are not missed.

Call barring is a mobile phone feature that allows the user to set certain prohibitions on incoming or outgoing calls. This is an effective means to prevent the phone being used to make expensive international or premium rate calls, particularly when the phone is to be used by people other than the subscriber.

Many companies that provide handsets for business use now employ call barring as a security measure, to control their use and restrict calls to pre-approved numbers. The user's personal code must be used to activate this feature.

Call return is a network service that allows a user to discover the number of the last person who called their phone. The service is activated by dialling a code, e.g. 1471 in the UK or *69 in the USA, and the number then provided will enable the user to return the call.

Call return is part of a general phone feature referred to as Calling Line Identity.

Call transfer is a mobile phone feature that allows the user to transfer a caller to another phone number. Either party in a phone call can dial a number and then exit from the connection, so leaving the other party ringing the new number.

Also known as: CW
Call waiting is a phone feature that allows the user to be alerted, while they are engaged in an active call, that another incoming caller is trying to contact them.

Depending on the type of mobile phone, the user might be given an audible 'beeping' warning, or a message on their phone's display screen. This facility gives the user the option of finishing the first call before answering the second one, or alternatively the user could take advantage of call holding to keep the first call 'on hold' while the second caller is dealt with. Other options might be to reject the waiting call, or to send it to the voice mail service.

Caller group logo is used as a means of identifying either individual callers, or members of specific caller groups.

Caller group logos usually come preloaded with a mobile phone, and are saved by the user under caller groups, or individual callers; they are then displayed whenever that individual user (or a member of the selected group) calls.