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Sonicwall Configuration Guide

Sonicwall Configuration Guide         In working with several resellers on configurations for the popular Sonicwall product, we have put together guides to assist in setup. The documents attached are...

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SIP security best practices advisory, Technical update 334

The purpose of this bulletin is to set forth a set of best practices when preparing a site to utilize SIP trunks.   The root cause of hacked calls is an attack on the system by hackers; individuals or...

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Network Security Best Practices, Technical Update 343

Introduction In the increasingly fast-paced landscape of Voice-over-IP (VoIP) it is more important than ever for ESI partners to help defend customer networks against unauthorized access and internet...

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(EHS-B130611-01) Phantom calls on ESI PBX & EHS SIP Trunks

Description Customers have been experiencing phantom calls with “Unavailable” caller ID. When escalated to ESI HS, the calls do not appear on the Hosted Switches. Such call tends to ring extension 100...

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