manual: add missing bit on the MGCP port

Change-Id: Ic18180793f0c1497b020e5f4a8cd34d6b519b85f
---
M doc/manuals/chapters/running.adoc
1 file changed, 1 insertion(+), 0 deletions(-)

diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc
index 6ad59a5..0bcca70 100644
--- a/doc/manuals/chapters/running.adoc
+++ b/doc/manuals/chapters/running.adoc
@@ -69,6 +69,7 @@
 running on the same interface:
 
 - The SCCP/M3UA links are established by OsmoHNBGW contacting an STP.
+- The MGCP link is established by OsmoHNBGW contacting an MGW.
 
 To run multiple OsmoHNBGW instances on the same SCCP routing, each HNBGW has to
 configure a distinct point-code, see <<configure_iucs_iups>>.

