I recently changed my 2G GSM Modem to a new 3G modem because we are phasing out 2G.
I thought the work is just replacement but after 1 week, I am still struggling with Kannel to work with this new modem.
I am using Kannel 1.4.4 and the modem is the TCAM T61-EHS5
AT Commands are at http://tcam.com.sg/wp-content/uploads/2014/02/ehs5-e_atc_v02000.pdf
I have been using different settings and doing google searches but just couldn’t get it to work. It may work for 1 min and then, stopped.
This is driving me crazy!! I learned from techsupport that the 3G modem has 2 restrictions:
1. The rate of sending SMS must be throttled.
2. The memory space is only 140 bytes
For point 1, I added throughput = 0.5 in the config
For point 2, it is too challenging for me to reoslve.
As the I need to send uncode (16-bits), how to I set up the PDU in kannel to auto break messages into 140 bytes chunk.
Thanks in advanced!