In "The future of Telephony", it says "... We should also note for security's sake you should always make sure that your [incoming] context never allows outbound dialing. (If by chance it did, people could dial into your system and make outbound toll calls that would be charged to you!)
The book was demonstrating using a PSTN environment and the zapata.conf was something like: context=internal signaling=fxo_ks channel=>1 context=incoming signaling=fxs_ks channel=>2 In PRI environment, does it mean that we have to purposely separate the say ISDN 20 channels into [internal] and [incoming] as well? This would not make sense to me as ISDN uses a one port card to contain multiple channels while the ports of a say TDM400P refer to each channel. If I just define a [default] context for a PRI environment, is this insecure? Can someone please enlighten me on this? _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
