running.adoc: add section about MGCP configuration
The manual seems to lack a section about how the MGW is set up. In the
osmo-bsc manual we have a "Configure MGCP to connect to an MGW" section
under the "Configure primary links" section. We should have the same
thing in the osmo-msc manual as well.
Change-Id: I5501739e63860c436ff606bc2758b495258cd2b9
Depends: osmo-mgw I47e7ff858d5067b46d52329be5f362ff61c0dff8
diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc
index 688fbbe..565c8d0 100644
--- a/doc/manuals/chapters/running.adoc
+++ b/doc/manuals/chapters/running.adoc
@@ -149,3 +149,21 @@
! default port is 4222, optionally configurable by:
remote-port 1234
----
+
+==== Configure MGCP to connect to an MGW
+
+OsmoMSC uses a media gateway (typically OsmoMGW) to direct RTP streams. By
+default, an MGW is expected to receive MGCP requests on the IANA-registered
+default port for MGCP (2427) on local host (127.0.0.1).
+
+Here is an example configuration for a remote MGW:
+
+----
+msc
+ mgw remote-ip 10.9.8.7
+ mgw remote-port 2427
+ mgw reset-endpoint rtpbridge/* <1>
+----
+<1> The 'reset-endpoint' setting instructs the OsmoMGW to send a wildcarded
+DLCX to the media gateway. This helps to clear lingering calls from the
+media gateway when the OsmoMSC is restarted.