diff -rN -u old-telepathy-spec/telepathy/server/channel.py new-telepathy-spec/telepathy/server/channel.py
--- old-telepathy-spec/telepathy/server/channel.py 2006-11-07 18:51:13.000000000 +0200
+++ new-telepathy-spec/telepathy/server/channel.py 2006-11-07 18:51:13.000000000 +0200
@@ -716,6 +716,9 @@
4 - CHANNEL_TEXT_SEND_ERROR_TOO_LONG
The outgoing message was too long and was rejected by the
server.
+ 5 - CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED
+ The channel doesn't support sending text messages to requested
+ contact.
Parameters:
error - one of the above integer errors