Using Asterisk call files as an auto dialler. Also can be used as a sim card dialer.
If you dial from sim cards and are looking for a sim card dialler, you can consider using a asterisk based server like the one described above connected to a GOIP sim device.
The goip 1 is designed for just one sim card and is appropriate for looking for routes just using one sim. The cost about £100.
When its setup the sim card becomes just a sip trunk in asterisk and benefits from some signalling info too, unlike analogue phone sip adaptors that make asterisk quite blind as to the progress of the call.
Its wise to make large random length gaps between each test call, and also make some calls to real fixed line numbers in the mix, even if they cost you money. Just call some fax machine for 45 seconds from time to time to make the use of the sim look more organic.
The goip 32:
This will take 32 sims and has the benefit of being able to change IMEI numbers from its simple web based panel for all 32 sim gateways. These are about £1350 which works out at a very cost effective and appealing £42 a channel. That’s less that half the cost of individual goip1’s at nearly £100 each.
For those of you who have 70 or 80 mobile phones at home with their IMEI numbers barred by certain networks for arbitrage related network abuse this IMEI change functionality can be very useful!
If you utilised about 10 sims at a time, and put a goip 32 with a small laptop and a 3g/4g internet gateway setup with dyn dns on a truck being driven round the UK you have a great AIT friendly solution where calls were being made from varying geographical locations from different IMEI’s etc.
You can also use GOIP with freeswitch and other SIP/VOIP based telephony platforms.