User guide

Setting Up the Polycom VVX 1500 C Phone

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Configuration changes can be performed centrally at the provisioning server

or locally. For detailed information on configuration file settings, refer to:

• <voIpProt/> on page A-8

• <up/> on page A-8

• <video/> on page A-8

• <call/> on page A-9

• <sec/> on page A-9

• <reg/> on page A-6

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.

Note

Refer to the Polycom UC Software Release Notes for the latest list of supported

Polycom endpoints/bridges/call servers (or gatekeepers)/media servers and any

supported third party products. Any issues (and possible workarounds) with any of

the above-mentioned products are also documented in the Release Notes.