Basic difference between DID Number or Toll free Number

Hi,

Difference between DID and Toll free: 1- DID: DID is an abbreviation for ( Direct Inward Dialing ). to simplify it for you, its a Local landline number and the reason for you choose claiming landline number ( DID ) depends on your business case, but generally this line can be dialed from anywhere all over the world. Customer ( end user ) normally will be charged making this call whether if they made the call from the same country you claimed the number from or if they dialed its internationally.

2- Toll free number: is usually has the example of 0800/0900. Choosing toll free line depends as well on your business case, toll free numbers usually can be dialed only from the country you are claiming the number for. As an example, if you claimed Japanese Toll free line, so this line can be dialed only from inside Japan. Customer ( end user ) will not be charged for this call and this is why its called ( toll free ) but again its possible to dial the number only from Japan using Japanese line and not from outside.

Best Regards, Ramy Hussein

Here is a link from Amazon Connect admin guide that explains the difference: https://docs.aws.amazon.com/connect/latest/adminguide/concepts-telephony.html

• CAPACITY: it is very different between the two. DID has lower capacity then TFN in general from a concurrency perspective, if you plan to have >100 concurrent call using a single DID, you should either think about using TFN or open a ticket with support to ensure what you need is supported.

• inbound redundancy: DID is single threaded in carrier while TFN can be used with multiple carrier that AWS controls. As with TFN, Amazon will be the RESPORG, therefore we can repoint your TFN to another carrier if something is not correct.