INFO - au.com.mrvoip.serialport.TTYSx R: <CR>
INFO - au.com.mrvoip.serialport.TTYSx R: <CR>
INFO - R: <ESC>PG1<CR>
INFO - R: <ESC>PG1<CR>
INFO - s: 110 1.7TAPIn Ready<CR><ACK><CR><ESC>[p<CR>
INFO - au.com.mrvoip.serialport.TTYSx sent: 110 1.7TAPIn Ready
INFO - au.com.mrvoip.serialport.TTYSx sent: 110 1.7TAPIn Ready
INFO - au.com.mrvoip.serialport.TTYSx R: <ESC>PG1<CR>
INFO - au.com.mrvoip.serialport.TTYSx R: <ESC>PG1<CR>
Exception in thread "Rcv /dev/ttyS1" java.lang.StringIndexOutOfBoundsException: String index out of range: -1
        at java.lang.AbstractStringBuilder.deleteCharAt(AbstractStringBuilder.java:773)
        at java.lang.StringBuffer.deleteCharAt(StringBuffer.java:383)
        at com.nursepaging.pna.basepage.PNA_BP.Strip(PNA_BP.java:302)
        at com.nursepaging.pna.basepage.PNA_BP.addRXListBP(PNA_BP.java:294)
        at com.nursepaging.pna.basepage.PNA_BP.checkReceived(PNA_BP.java:101)
        at com.nursepaging.pna.CorePNA.CheckReceived(CorePNA.java:285)
        at com.nursepaging.pna.PNALayer1.CheckReceived(PNALayer1.java:30)
        at au.com.mrvoip.serialport.TTYSx.toBuffer(TTYSx.java:296)
        at au.com.mrvoip.serialport.TTYSx_Receiver.displayText(TTYSx_Receiver.java:116)
        at au.com.mrvoip.serialport.TTYSx_Receiver.readData(TTYSx_Receiver.java:86)
        at au.com.mrvoip.serialport.TTYSx_Receiver.run(TTYSx_Receiver.java:50)
        at java.lang.Thread.run(Thread.java:595)
INFO - R: <STX>305<CR>
Checksum disagree - theirs | ours is 305 | 2