I think the SMS messages need to work smart things in alarm fire or access control mode. Since the existing dashboar send notifications only when the device (phone) is in GPRS ie require internet connection!
send SMS notification need from Arduino device code.
Push notifications as for me are more effective. And yes, they are free =). @Pavel we just need to add priority setting for notifications that are must.
I think that the mechanism of sending the notice runs as follows: Arduino device code -> Blynk Cloud -> Dashboard that is, when there is no stable Internet connection or dashboard status is logout, you will not be able to notice.
Found an easy solution to sending SMS for free via Blynk. My cellphone provider, as do most has a free gateway where you can send a your TXT to a email address and it gets converted to a SMS and sent to your phone. So I just use it as part of the email widget insteasd of my email address, I use Verizon and their format is " Your cell number" @vtext.com. Works like a charm. For ATT phones its 10digitphonenumber@txt.att.net, but I have dont have ATT and cant test it.
Below is a list for other carriers:
Alltel @message.alltel.com
Cingular @mobile.mycingular.com
Nextel @messaging.nextel.com
Sprint @messaging.sprintpcs.com
T-mobile @tmomail.net
VoiceStream @voicestream.net
US Cellular @email.uscc.ne
Virgin @vmobl.com