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Diffstat (limited to 'res/res_pjsip_header_funcs.c')
-rw-r--r--res/res_pjsip_header_funcs.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/res/res_pjsip_header_funcs.c b/res/res_pjsip_header_funcs.c
index 7d164b12a..648f1c860 100644
--- a/res/res_pjsip_header_funcs.c
+++ b/res/res_pjsip_header_funcs.c
@@ -39,7 +39,8 @@
/*** DOCUMENTATION
<function name="PJSIP_HEADER" language="en_US">
<synopsis>
- Gets, adds, updates or removes the specified SIP header from a PJSIP session.
+ Gets headers from an inbound PJSIP channel. Adds, updates or removes the
+ specified SIP header from an outbound PJSIP channel.
</synopsis>
<syntax>
<parameter name="action" required="true">
@@ -75,6 +76,10 @@
</syntax>
<description>
+ <para>PJSIP_HEADER allows you to read specific SIP headers from the inbound
+ PJSIP channel as well as write(add, update, remove) headers on the outbound
+ channel. One exception is that you can read headers that you have already
+ added on the outbound channel.</para>
<para>Examples:</para>
<para>;</para>
<para>; Set 'somevar' to the value of the 'From' header.</para>
@@ -120,7 +125,7 @@
<note><para>If you call PJSIP_HEADER in a normal dialplan context you'll be
operating on the <emphasis>caller's (incoming)</emphasis> channel which
- may not be what you want. To operate on the <emphasis>callee's (outgoing)</emphasis>
+ may not be what you want. To operate on the <emphasis>callee's (outgoing)</emphasis>
channel call PJSIP_HEADER in a pre-dial handler. </para>
<para>Example:</para>
<para>;</para>