Ringback, Silence, Ringback

It can be easy to take things like the dial-tone, or ringback for granted… until they don’t act like you expect them to. And we all know that if something doesn’t act like people expect, it can only mean one thing.. increased calls to the IT helpdesk 🙂 Here’s my retrospective…

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SIP Pinger Tool

Checking connectivity to a TCP SIP Trunk is easy enough, “telnet” is the Swiss Army knife of any techie toolkit, and it should show that routing and firewall rules are configured correctly. However, I’ve had a couple of situations where that wasn’t enough. First example involved Checkpoint firewalls between all client sites, and…

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