title: SIPP Scenario (version 1.0 don't send digits)
body: <p>Folks, 
  I am trying to make calls to test a IVR Machine with SIPP.
  First, I am using the Sipp v1.0 final version. But this version does not have support to send digits to IVR Machine. So system is unable to answer calls.
  I tested using other versions too. </p>
  
  <p>Here is my scenario:</p>
  
  
  
  <pre><code>&lt;!DOCTYPE scenario SYSTEM "sipp.dtd"&gt;
  
  &lt;scenario name="Basic Sipstone UAC"&gt;
  
  &lt;send&gt;
  
  &lt;![CDATA[
  
  INVITE sip:12053@10.0.8.67 SIP/2.0
  Via: SIP/2.0/UDP 10.0.4.147:5060;rport;branch=z9hG4bK386088
  From: "sipp" &lt;sip:11958251026@10.0.4.147:5070&gt;;tag=8808
  To: &lt;sip:12053@10.0.8.67&gt;
  Call-ID: 1510678743-6088-NVT4147@10.0.4.147
  CSeq: 45 INVITE
  
  Max-Forwards: 70
  User-Agent: NCH Software Express Talk 4.28
  Contact: &lt;sip:11958251026@10.0.4.147:5060&gt;
  Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, REFER, NOTIFY
  Supported: replaces
  Content-Type: application/sdp
  Content-Length: 328
  v=0
  o=NCHSoftware-Talk 1510678729 1510678743 IN IP4 10.0.4.147
  s=Express Talk Call
  c=IN IP4 10.0.4.147
  t=0 0
  m=audio 8000 RTP/AVP 0 8 96 3 13 101
  a=rtpmap:0 PCMU/8000
  a=rtpmap:8 PCMA/8000
  a=rtpmap:96 G726-32/8000
  a=rtpmap:3 GSM/8000
  a=rtpmap:13 CN/8000
  a=rtpmap:101 telephone-event/8000
  a=fmtp:101 0-16
  a=sendrecv
  
  ]]&gt;
  
  &lt;/send&gt;
  
  &lt;recv response="100" optional="true"&gt;
  &lt;/recv&gt;
  
  &lt;recv response="180" optional="true"&gt;
  &lt;/recv&gt;
  
  &lt;recv response="183" optional="true"&gt;
  &lt;/recv&gt;
  
  &lt;recv response="200"&gt;
  &lt;/recv&gt;
  
  &lt;send&gt;
  
  &lt;![CDATA[
  
  ACK sip:12053@10.0.8.67:5060;user=phone SIP/2.0
  Via: SIP/2.0/UDP 10.0.4.147:5060;rport;branch=z9hG4bK396088
  To: &lt;sip:12053@10.0.8.67&gt;;tag=7831-08A1
  From: "sipp" &lt;sip:11958251026@10.0.4.147:5070&gt;;tag=8808
  Call-ID: 1510678743-6088-NVT4147@10.0.4.147
  CSeq: 45 ACK      
  Max-Forwards: 20
  User-Agent: NCH Software Express Talk 4.28
  Content-Length: 0
  
  ]]&gt;
  
  &lt;/send&gt;
  &lt;nop&gt;
  &lt;action&gt;
  &lt;exec play_pcap_audio="pcap/g711a.pcap"/&gt;
  &lt;/action&gt;
  &lt;/nop&gt;
  &lt;pause milliseconds="8000"/&gt;
  &lt;nop&gt;
  &lt;action&gt;
  &lt;exec play_pcap_audio="pcap/dtmf_2833_1.pcap"/&gt;
  &lt;/action&gt;
  &lt;/nop&gt;
  &lt;pause milliseconds="3000"/&gt;
  &lt;send&gt;
  &lt;![CDATA[
  BYE sip:12053@10.0.8.67:5060;user=phone SIP/2.0
  Via: SIP/2.0/UDP 10.0.4.147:5060;rport;branch=z9hG4bK26088
  From: "sipp" &lt;sip:11958251026@10.0.4.147:5070&gt;;tag=8795
  To: &lt;sip:12053@10.0.8.67&gt;;tag=7831-2E51
  Call-ID: 1510678730-6088-NVT4147@10.0.4.147
  CSeq: 107 BYE
  Max-Forwards: 20
  Subject: Performance Test
  Content-Length: 0
  ]]&gt;
  &lt;/send&gt;
  &lt;recv response="200" crlf="true"&gt;
  &lt;/recv&gt;
  &lt;ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/&gt;
  &lt;CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/&gt;
  &lt;/scenario&gt;
  </code></pre>
  
  <p>But, the answer is that (when I am using de version 1.0):</p>
  
  <blockquote>
    <p>2017-11-16 19:31:46: Unknown element 'nop' in xml scenario file.</p>
  </blockquote>
  
  <p>Please, help me.</p>