Polycom manual Deployment Guide for the Polycom VVX 1500 D Phone

Deployment Guide for the Polycom VVX 1500 D Phone

The following information should be noted:

•If the phone has only the H.323 protocol enabled, it cannot be used to answer SIP calls.

•If the phone has only the SIP protocol enabled, it cannot be used to answer H.323 calls.

•If both SIP and H.323 protocols are disabled by mistake, the phone will continue to work as a SIP-only phone; however, the phone is not registered (you are able to send and receive SIP URL calls).

•The protocol that is used to place a call is stored in the placed call list of the user’s phone.

•The protocol to be used when placing a call from the user’s local contact directory is unspecified by default. The user can select SIP or H.323.

•The protocol that is used when placing a call from the user’s corporate directory depends on the order of the attributes in the corporate directory. If only SIP_address is defined, then the SIP protocol is used. If only

H323_address is defined, then the H.323 protocol is used. If both are defined, then the one that is defined first is used. For example, if dir.corp.attribute.4.type is SIP_address and dir.corp.attribute.5.type is H323_address, then the SIP protocol is used.

•By default, the user is presented with protocol routing choices when a call could be placed with more than one protocol from its current context. The user must choose between SIP and H.323 to place a call by pressing the appropriate soft key.

•Calls made using H.323 cannot be forwarded or transferred.

—The Transfer and Forward soft keys are not displayed during an H.323 call on a Polycom VVX 1500 D phone. The Forward soft key is not displayed on the idle display of a Polycom VVX 1500 D phone if the primary line is an H.323 line.

—If a Polycom VVX 1500 D user presses the Transfer soft key during an H.323 call on a Polycom VVX 1500 D phone, no action is taken.

—The auto-divert field in the local contact directory entry is ignored when a call is placed to that contact using H.323.

—If a conference host ends a three-way conference the call and one of the party is connected by H.323, that party is not transferred to the other party.

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