SMS bulk sending, scheduling - Concise logo for web service

SMS-COURIER

Purpose of this web service/application is to connect businesses of any size with their customers by sending bulk SMS with ability to unsubscribe. Our customers only pay for sent and recieved SMS which is subtracted from their credit balance. No monthly fees.

For example restaurants want to notify customers every day about their daily menu before lunch time or ongoing discounts for drinks and foods, live music shows, sport screening.

>> Our customer is that restaurant which can define the bulk SMS and contact list using our web interface.

Customers of our clients will know about this option to recieve information from the subject from advertising materials like stickers, flyers, banners. They will need phone number and unique code to which they will send registration SMS with text "<CODE> A/D" A-activate / D-deactivate

We will also offer this advertising material with our logo. (we will use 99designs service if we succeed choosing the logo here)

This is not strictly for restaurants, this service can be used by any types of business. You name it.

Our goal is to make a brand that is recognized by various signs like stickers on the entrace door with the registration phone number and unique code, flyers and banners.

In our country there is no service like this. There are only SMS gateways or SMS games with huge initial investments.

On one side, we must address the customers of our clients.
People who go to restaurants, who shop in malls. It could be anyone.
(stickers, flyers, banners)

On the other side we must be able to represent our service to our customers who will send the SMS.
(logo on the web, logo on invoices, logo on web service brochure)

This logo should be able to be used on website as a logo as well as to be printed on various merchandise and branding items - stickers, flyers, banners, billboards, t-shirts.

Could be printed on any type of material (paper, plastic, textile).

Not full color, one or two colors will be good.

The logo must be concise so that someone looks at it and knows what is it if he previously saw it.

The icon/emblem should be something technical to represent SMS/SMS bulk sending.

Something like envelope, phone, envelope with phone, etc. Also would be nice to integrate the service name "SMS-COURIER" to the logo any way but it must be clear and readable.

Logo must be professional but slightly simple and clear.

Be creative.

The most creative and unique proposal will be rewarded!

The output should be PSD / AI. Any vector format in high resolution. You may use commercial fonts but we must be able to use them with no additional cost.

Please provide proposals on white (light) and black (dark) background.