11-15-2007 01:48 AM - edited 03-11-2019 04:31 AM
Dears,
1. I have a Problem in ring back tone when our customers make a call to my extensions.
2. I have a problem with some customers not all, that they cannot hear each other.
3. I have a problem that some IP phones (Linksys SPA921) can receive any call and originate calls between PBXs but cannot originate calls for mobile phones or international although at the same LAN network there is soft phone (X-lite) can originate and receive all type of calls.
I attached my ASA5510 configuration for more assistance.
thank for any helping.
11-21-2007 10:03 AM
This document describes how to allow the Voice over IP (VoIP) Protocols traffic on the outside interface and enable inspection for each protocol in the Cisco PIX/ASA Security Appliances.
Refer to the document for more information PIX/ASA 7.x: Enable VoIP (SIP, MGCP, H323, SCCP) Services Configuration Example
http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008081042c.shtml
11-26-2007 05:49 PM
Is this the full firewall configuration?
Have you any details about the address ranges for the customers?
11-26-2007 10:17 PM
Turn off inspection for the following:
inspect h323 h225
inspect h323 ras
inspect rtsp
There's a bug in the ASA code for RTSP that I know of. Not sure if the same thing applies for H323 as well. But you didn't say what protocols your app is using. Give it a whack, let me know what happens.
-brad
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