setting smsgw

[SMSGW]
SMSCSendLimit=1/20

untuk membuat pengiriman sms 1 sms dalam 20 detik, tapi gak jalan

DelayAfterSend=20000
specifies a number of milliseconds to wait after successfully sending a message  

setting ini akan membuat sms terkirim setiap 20 detik
ini hasilnya

2016-05-13 10:59:12,SAR-+6281286003774-d7-2-2.req,127.0.0.1,+6281286003774,OK -- COM8:,Binary=1;UDH=050003D70202;Data=70206A599E6E8741CBF03C8D06
2016-05-13 10:59:26,SAR-+6281286003774-de-2-1.req,127.0.0.1,+6281286003774,OK -- COM8:,Binary=1;UDH=050003DE0201;Data=84F0F52B29AEBFA66439888A2C828E416AB1EA4ED341F3B2DC9E1E9741613739CC02499B415092188CD968B35ACC062297DDE7B01B3475828CB4A0D6788CC9B0B3DA0D34AF93C36810390C0FD341E474B82D4EB341E4342838AD4E41D3B2DC9E1E9741C3B29B5E96839A41E7F1180411AB41D0345A0D4A8BA0B4DBFC06A1EB6250AC0683C564
2016-05-13 10:59:38,SAR-+6281286003774-de-2-2.req,127.0.0.1,+6281286003774,OK -- COM8:,Binary=1;UDH=050003DE0202;Data=70206A599E6E8741CBF03C8D06
2016-05-13 10:59:58,SAR-+6281286003774-df-2-1.req,127.0.0.1,+6281286003774,OK -- COM8:,Binary=1;UDH=050003DF0201;Data=84F0F52B29AEBFA66439888A2C828E416AB1EA4ED341F3B2DC9E1E9741613739CC02499B415092188CD968B39A8C062297DDE7B01B3475828CB5A0D67884DD84305C0D34AF93C36810390C0FD341E474B82D4EB341E4342838AD4E41D3B2DC9E1E9741C3B29B5E96839A41E7F1180411AB41D0345A0D4A8BA0B4DBFC06A1EB6250AC0683C564