clean up naming: s/SIPCON_REMOTE/PBX_SIP etc

Change-Id: Ie66b32466f80d930150ea940d236cfbbe026fc50
diff --git a/net/templates/kamailio.cfg b/net/templates/kamailio.cfg
index b0e2bf3..91df55f 100644
--- a/net/templates/kamailio.cfg
+++ b/net/templates/kamailio.cfg
@@ -47,11 +47,11 @@
 
 /* uncomment and configure the following line if you want Kamailio to
    bind on a specific interface/port/proto (default bind on all available) */
-listen=${SIPCON_REMOTE}:${SIPCON_REMOTE_PORT}
+listen=${PBX_SIP}:${PBX_SIP_PORT}
 
 /* port to listen to
  * - can be specified more than once if needed to listen on many ports */
-port=${SIPCON_REMOTE_PORT}
+port=${PBX_SIP_PORT}
 
 # life time of TCP connection when there is no traffic
 # - a bit higher than registration expires to cope with UA behind NAT
@@ -73,7 +73,7 @@
 # pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"
 #
 # - by default is empty to avoid misrouting
-pstn.gw_ip = "${SIPCON_LOCAL}:${SIPCON_LOCAL_PORT}" desc "osmo-sip-connector Address"
+pstn.gw_ip = "${SIPCON_SIP}:${SIPCON_SIP_PORT}" desc "osmo-sip-connector Address"
 #!endif