Mandatory SMPP bind parameters

    host        = [SMPP_API_HOST]
    port        = [SMPP_API_PORT]
    username    = [SMPP_API_USERNAME]
    password    = [SMPP_API_PASWWORD]
    system-type     = 0
    dest-addr-ton   = 1
    dest-addr-npi   = 1
    src-addr-ton    = 1
    src-addr-npi    = 1
    throughput      = 50