Choosing the right data SIM for Digital Signage

Some key features are accurate billing data, aggregation, bandwidth, network breadth and depth, commitment to data, technical customer service, appropriate contract and appropriate quality. If we take a brief look at the last two, which are interconnected-

Appropriate Contracts
Since increasing prices is almost certainly out, networks have been redefining their contracts in order to cut their exposure to ‘overage’.
Look for phrases such as:

“Cost refers to download only” and “unlimited defined as 500Mb per month”

Other contracts are simy consumer / business contracts sold in good faith to M2M customers with little understanding that they are not
appropriate:

“Web browsing only” and “no peer to peer” being two phrases that are a sure sign you are dealing with the wrong person.

This last is lifted directly from a customer’s airtime contract:

“We do not permit use of this service to provide modem access for a computer or for peer to peer file sharing, internet phone calls or instant messaging”

Not a lot of use then for a Signage company. So it is very easy to end up in breech of a contract the moment that you use it, even though you and the reseller were aware what that function was at the point of purchase.

Appropriate Quality
A dozen articles could be written about Network Quality and why it isn’t good enough for Industrial Apications such as Digital Signage. This can be as simple as ‘does the SIM you get work’. Up to 5% of consumer SIMs don’t, something to remember if you are anning a large roll out.

But Quality of Service is also becoming an issue- what is the response time if a data pipe goes down? How many filters are implemented as the data goes through the network? Crucially for this industry, what compression will be used on my data? If you send a 3Mb picture over mobile what guarantee do you have of the size of the file when it gets to the far end?