OsmoMSC - Feature #2260: "next generation" osmo-bsc_mgcp
osmo-mgw: support multiple BTS/RNC and pass the IP address via MGCP
Support multiple BTS/RNC cells directing RTP via the same osmo-mgw instance. The easy solution for osmo-bsc_mgcp is to omit the 'bts ip' vty command and any BTS that is connecting will be accepted. In the new osmo-mgw we probably prefer to communicate the BTS/RNC address via MGCP so that we never accept RTP from an unsolicited source.