Nortel Networks NN43001-504 manual Timing information, Short Error code Description Action

			Timing information 199
Short	Error code	Description	Action
SVP	No SVP Response	The phone cannot	Configure the Ethernet
		communicate with the WLAN	switch port and SVP to
		IP Telephony Manager 2245.	100/full. Forward the DHCP
			option 151 to the IP of the
			SVP server. Verify the
			settings on the AP. Verify
			that there is no 2.4 Ghz
			interference of any kind.
SVP	No SVP IP	No static IP entered into	Check for a valid IP in the
		the phone for the WLAN IP	phone. Check the license
		Telephony Manager 2245.	management configuration.
			Compare a working phone
			code to the nonworking
			phone code.
SW	No SW Found	No phone code is found on	Point the TFTP software to
		the TFTP server.	the correct directory that
			contains valid code.
System	System Locked	The WLAN IP Telephony	Dial in and verify that system
		Manager 2245 is locked.	is locked. Soft reset the
			SpectraLink infrastructure
			through the menu system.
TFTP	TFTP Error(s)	A failure occurred during the	Check the TFTP software
		TFTP software update.	(SolarWinds is not
			compatible). Check
			the TFTP configuration.
			Forward option 66 in the
			DHCP scope, to the IP
			address of the TFTP server.

Timing information

The WLAN IP Telephony Manager 2245 sends payload packets to the handset every 30 ms in a 5 ms window. The handsets are likely to experience issues if the jitter between the WLAN IP Telephony Manager 2245 and the AP is greater than 5 ms. Ideally, jitter in this part of the network is 1 ms or less.

Table 27

Timing

WLAN IP Telephony Manager 2245	Handset to the
to the AP	WLAN IP Telephony Manager 2245
Delay ≤ 100 ms	Delay ≤ 100 ms
Jitter ≤ 1 ms	Jitter ≤ 30 ms
Packet loss ≤ 2%	Packet loss ≤ 2%

Nortel Communication Server 1000

WLAN IP Telephony Installation and Commissioning

NN43001-504 01.02 Standard

Release 5.0 15 June 2007

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