ISDN Telephone Lines

ISDN2e This type of ISDN is supplied as a single line which has the capacity to carry two telephone calls. The service is usually delivered to the customers site as a single termination point (RJ45), and needs to be connected to the ISDN2 Trunk Port of a telephone system to be able to work. A single ISDN2e phone line provides two channels, so that means two simultaneous calls can be made at any one time. Multiple ISDN2e ...

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ISDN2e

This type of ISDN is supplied as a single line which has the capacity to carry two telephone calls. The service is usually delivered to the customers site as a single termination point (RJ45), and needs to be connected to the ISDN2 Trunk Port of a telephone system to be able to work. A single ISDN2e phone line provides two channels, so that means two simultaneous calls can be made at any one time. Multiple ISDN2e lines can be used together to increase the capacity of simultaneous calls, but each ISDN2e phone line will need to be connected to it''s own ISDN2e Trunk port on the telephohne system.

DDI numbers can be allocated to ISDN2e phone lines, so for expample you could have two ISDN2e phone lines (4 channels) and a blcok of 10 or 20 DDI telephone numbers. This would mean that a small business with 15 extensions would be able to give each extension it's own telephone number, so when a call is made to that phone number, the phone system sees the number being called and can route the call to a particular extension. Of course, with only 2 Lines (4 channels) only 4 calls inbound or outbound could be made at any one time, no matter how many individual DDI numbers were allocated to the lines.

ISDN2e telephone lines tend to be used for smaller phone systems were only three or four ISDN2e lines are required (6-8 channels), so the KX-TDA15 or KX-TDA30 phone systems should provide adequate capacity for both lines and extensions for small to medium businesses that want to take advantage of ISDN services. If a business requires more than eight simultaneous calls they should consider ISDN30e phone lines.



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ISDN30e This type of ISDN is supplied as a single line which has the capacity to carry up to 30 simultaneous calls. ISDN30e lines work in a similar way to ISDN2e lines, a rental is chargeable on each channel required with a minimum of 8 channels. That means if you require an ISDN30e phone line your would need to order a minimum of 8 channels and pay a monthly or quarterly rental for 8 channels, which would allow ...

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ISDN30e

This type of ISDN is supplied as a single line which has the capacity to carry up to 30 simultaneous calls. ISDN30e lines work in a similar way to ISDN2e lines, a rental is chargeable on each channel required with a minimum of 8 channels. That means if you require an ISDN30e phone line your would need to order a minimum of 8 channels and pay a monthly or quarterly rental for 8 channels, which would allow 8 simultaneous calls. If extra call capacity is required then it is simply a case of opening up extra capacity and paying the extra rental for each additional channel, up to a maximum of 30 channels. An ISDN30e line will need to connect to an ISDN30e Trunk Port of a phone system, so you would need to use this with the KX-TDA100, KX-TDA200, KX-TDA600, KX-TDE100 or the KX-TDE200 phone systems, all of which have the ISDN30e trunk card.

ISDN30e lines can also use DDI numbers so each extension in the business could have it's own inbound direct dial telephone number. If a business is using DDI numbers then we recommned they use Voicemail so that calls made directly to an extension can be answered by the voicemail if the person being called is engaged or does not answer their telephone.


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