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IP Office Product Description

IP Office 4.2

Page 166

Issue 18.b.- (08 July 2008)

Password Authentication Protocol (PAP)

PAP is a method of authenticating the remote end of a connection using unencrypted passwords.

Challenge Handshake Authentication Protocol (CHAP)

Challenge Handshake Authentication Protocol allows an incoming data call to be authenticated using encrypted

passwords. The system also provides the option to periodically reaffirm the authenticity of the caller during the

data call.

Data Header Compression

IP Header Compression (IPHC) reduces the header size of the data packet to gain bandwidth efficiency over

Wide Area Networks, but adds to transmission latency.

Data Compression

IP Office supports both Microsoft Point to Point Compression and Stac Lemple Ziv to provide greater

throughput on slow speed wide area network links.

Bandwidth Allocation Control Protocol (BACP)

Bandwidth Allocation Control Protocol allows the negotiation with the remote end of the data call to request

additional calls to be made to improve aggregate data throughput.

Callback

Three types of call back are supported

· LCP (Link Control Protocol)

After authentication the incoming call is dropped and an outgoing call is made to a predefined number to

re-establish the link.

· Callback CP (Microsoft's Callback Control Protocol)

After authentication from both ends, the incoming call is dropped and an outgoing call to a predefined

number made to re-establish the link.

· Extended CBCP (Extended Callback Control Protocol)

Similar to Callback CP however, the Microsoft application at the remote end will prompt for a telephone

number. An outgoing call will then be made to that number to re-establish the link.

Domain Name Service (DNS) Proxy

Domain Name Service servers provide the translation of names such as www.avaya.com to the domain’s IP

address required to establish a connection. IP Office provides this service to PCs on the network by proxy.

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Reliant Octel 300 Spezifikationen Seite 166