Unify V3R3 Specifications download pdf (Page 19)

A31003-D3000-P100-01-76A9, 10-2013

OpenStage and Desk Phone IP SIP V3, Security Checklist, Planning Guide 19

Phone Hardening Measures

Authentication of phone at SIP Server

Related Topics

4.4 Authentication of phone at SIP Server

To ensure that only authorized phones contact the SIP Server Unify provides the

state-of –the-art Digest Authentication mechanism-

The Digest Authentication uses a Challenge Response Algorithm. It is uses a

userID – which can be the phone number – and a password. The SIP server

sends a Challenge and the phone responds with its password.

Digest Authentication can be used without Secure signalling over TLS – the

password is transmitted in a secure format, but use of TLS signalling is strongly

recommended to provide an overall security for the signalling. Use of TLS will also

allow authentication by the phone of the SIP Server – see Chapter Harden

Signalling to Secure Signalling.

The Digest Authentication must be configured on the SIP Server before setting up

the phone. Please see the Security Check List for the SIP server.

Table: Digest Authentication

Related Topics

Set Secure Admin pass-

word

Yes No:

Set Secure User pass-

words for phones

Yes No:

Customer Comments and

Reasons If some mea-

sures are not executed

then please explain here.

CL- Secure Phone

Authentication on SIP

Server

Measures Setup Digest Authentication User-ID and Password

References See Phone Administration Manual chapter on System Set-

tings -> SIP registration

Can be done via

Needed Access Rights Administrator

Executed

Set SIP Authentication

UserID and Password in

the phone

Yes No:

Customer Comments and

Reasons

CL-Secure passwords

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