On 12/2/11 3:26 PM, Jimmy Hess wrote:
Since you're making a call to an outside service, then you'll have a question to deal with... what do you want to happen if the remote server can't answer your query, your internet connectivity to the remote server has an issue, or the remote service is taking way too long to respond.
Failed query, then allow? Failed query, then block? Failed query, then retry forever? If the database server is temporarily unavailable, then you have to pick how you want to fail.
Careful about the risk of potentially making an outgoing 911 call sit and wait 10 minutes on a query to a remote database, to see if the call will be allowed, b/c database happens to be experiencing a speed issue at the time.
Yeah, whole different scenario with a human agent vs. an autodialer. Presumably these are agents with a SIP trunk to a telemarketing system and not generic business users. With the Sansay you can deploy a blocking server based on the resource, so 911 and other service codes would not use it, only NPA-NXX-XXXX. If the trunk is used only for outbound telespam^H^H^H^Hmarketing, then logically you would probably want to reject on unreachable. Sansay is pretty flexible in terms of ability to use multiple blocking servers. -- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV