<h3>Description</h3>

<pre><code>We are using the functions: 
replace_body("RTP/AVP 96 97 0 101 98", "RTP/AVP 101 96 97 0 98");
msg_apply_changes();

We expect it replace the 'RTP/AVP 96 97 0 101 98' for 'RTP/AVP 101 96 97 0 98'

And what kamailio does is append 'RTP/AVP 101 96 97 0 98' to the end of the SDP body.
</code></pre>
<h4>Log Messages</h4>

<pre><code>We are not getting any error message
</code></pre>
<h3>Possible Solutions</h3>

<pre><code>We've got the opportunity to test on version 4.0.3 and it does the work properly.
</code></pre>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<pre><code>version: kamailio 4.4.5 (x86_64/linux) 
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown 
compiled with gcc 4.9.2
</code></pre>
<ul>
<li><strong>Operating System</strong>:</li>
</ul>
<pre><code>Distributor ID:  Debian
Description:    Debian GNU/Linux 8.7 (jessie)
Release:        8.7
Codename:       jessie

Linux devcomphe 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux

</code></pre>

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