[VoiceOps] Issues with ISPs blocking SIP 5060 - 5061

Matt Yaklin myaklin at g4.net
Thu Nov 21 12:32:35 EST 2013

On Thu, 21 Nov 2013, Jay Hennigan wrote:

> On 11/21/13 5:36 AM, J. Oquendo wrote:
>> "Getting the carrier..." We try not to inherit
>> any of the network unless we are managing it. This frees us
>> from any liabilities associated with say a Doctors office
>> doing some whacky VPN to a hospital or other. Would take us
>> too long to perform a network assessment, and make sense of
>> a client's business needs, especially for free.
> It's a balancing act, to be sure.  Your customer will of course say that
> the rest of the Internet works fine, it's just your VoIP service that is
> failing.  "I can get to Google and Yahoo, so there's nothing wrong with
> my Internet, but your phone doesn't work."
> For one-off remote phones, setting SIP transport to TCP is often a good
> workaround by the way.

Will tunneling the sip/rtp packets be more common in the near future
for SIP phone providers?


> --
> 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
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