From 239a12284293141208f377452ecbddd47d78289c Mon Sep 17 00:00:00 2001 From: Holger Hans Peter Freyther Date: Wed, 23 Mar 2016 17:02:32 +0100 Subject: doc: Update with some requirements and limitations --- README.asciidoc | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/README.asciidoc b/README.asciidoc index ae4b746..a32456f 100644 --- a/README.asciidoc +++ b/README.asciidoc @@ -6,3 +6,19 @@ can be used to make configurations. The code doesn't have any RTP or transcoding support. Call identities can be either the MSISDN or the IMSI of the subscriber. + + +Requirements of Equipment +^^^^^^^^^^^^^^^^^^^^^^^^^ + +* DTMF need to be sent using SIP INFO messages. DTMF in RTP is not +supported. + +* BTS+PBX and SIP connector+PBX must be in the same network (UDP must be +able to flow directly between these elements) + +* No handover support. + +* IP based BTS (e.g. Sysmocom sysmoBTS but no Siemens BS11) + +* No emergency calls -- cgit v1.2.3