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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!
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<indicator name="VoIP">[[File:menu-voip.svg|link=:Category:VoIP|30px|Back up to the VoIP and SMS Category Page]]</indicator>
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== A Note on passwords and SIP ==
When your phone registers to our servers, the password is '''not''' sent in clear text.
This is due to Digest Authentication being used between your phone and our servers - this is normal SIP operation.
When your phone uses Digest MD5 authentication, the phone and our server engage in a challenge-response exchange.
Our server sends a challenge (called a nonce), and the phone responds with a hash of its password combined with the challenge that our server sent.
It is this hash, not the plain text password, is sent over the network.
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