User's Manual

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ATTENTION

VLAN ID

The default VLAN ID value in Windows is 0. This can be overwritten for Network

Interface Cards (NIC) that support 802,1Q. The 2050 processes do not assign

values to the VLAN ID field. This setting is documented with the NIC or the NIC

driver.

The VLAN ID for an application must match the VLAN ID for the PC because the

PC has only one IP stack for each NIC. A second IP stack is required to assign

a specific VLAN ID tag for an application which is different than the PC tag.

You can use two different IP cards, each with different VLAN ID values on a

single PC; however, this can cause security gaps on the voice VLAN, which is

normally a more secure network than the data LAN.

DiffSERV (DSCP)

The IP Softphone 2050 uses DSCP settings assigned by the TPS. The

IP Softphone 2050 supports DSCP on Windows 2000 Professional and

Windows XP. For information about configuring DiffServ values, see

Signaling Server IP Line Applications Fundamentals (NN43001-125).

802.1p

For information about configuring 802.1p values, see Signaling Server IP

Line Applications Fundamentals (NN43001-125).

Ethereal traces

Current versions of Ethereal show 802.1Q headers, if they are present.

802.1Q must be enabled on the NIC for the headers, which includes

802.1p to be captured.

GXAS

The IP Softphone 2050 Release 3.1 supports GXAS, which enables the

user to start applications that are available on the GXAS server. You must

manually configure the CSV file on the GXAS server to support the IP

Softphone 2050. For more information, see Nortel Application Gateway

1000/2000 Administration Guide (NN42360-600).

Licenses

The IP Softphone 2050 Release 3.0 requires a license to operate. If the

phone cannot obtain a license from one of the licensing schemes then it

cannot connect to a Call Server and an error message appears on the

phone screen.

While the IP Softphone 2050 runs, it first goes through three licensing

schemes before it connects to Call Server. After the phone obtains a

license, it repeats the procedure at a random interval. If the licensing

Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 05.06 30 April 2010