In order to make one phone ring instantly and to choose the displayed calling number:
Register once and login to get some credits (5 free trial credits).
Ring of a phone during 20 seconds: makering
Visit the page WebServices on the ring tab, fill in the phone number of the caller (1234567890123456 for example), the phone number of the callee (0687654321 for example) and validate.
A confirmation message is displayed giving a link to the log to track all steps of the call in details.
Immediately the phone 0687654321 is getting a call.
The number 1234567890123456 is displayed as caller.
The phone is ringing during 20 seconds. If the callee is picking up the call, no communication with anyone will be established. The call will be stopped immediately.
To start the ring after a given delay
Fill in in the field in the delay in minutes that you want to wait.
You can choose a delay between 1 and 120 minutes.
Ring of multiple phones simultaneously (until 10 phones): makering+
Visit the page WebServices on the ring+ tab, fill in the phone number of the callee and its respective caller on each line. You may fill up to 10 lines. Let some fields blank if you want to make ring less than 10 phones and validate.
Immediately and simultaneously every callee is getting a call from its corresponding caller during 20 seconds. If you wish, you can select the same caller for multiple callees.
Ring of multiple phones simultaneously (until 100 phones): makeringun
Visit the page WebServices on the ringun tab, fill in the international phone prefix of the caller and callees. Fill in the caller number and the list of all callees (without the prefix) separated by '+' (no space, no letter) and validate.
Every callee is getting a call from the same caller during 20 seconds. The callees will ring more or less simultaneously depending on the local infrastructure to which the phones receiving the call are attached (at a rate of approximately 2 callees per second).