NetComm V85 manual Advanced SIP parameters

Field Description

Busy Forward	Check the Busy box and enter the Busy forward
	number in the field. For example, if user A’s phone
	has Busy checked with the number set to 555-5555,
	then incoming calls for A’s phone will be forwarded
	to number 555-5555 if A’s phone is currently busy.
No Answer Forward	Check the No Answer box and enter the no answer
	forward number and time in the field supplied. For
	example, if user A’s phone is receiving an incoming
	call and has No Answer checked with number 555-
	5555 and the no-answer time equals 10, then this
	phone call will be forwarded to number 555-5555 if
	it is not answered for 10 seconds.

Advanced SIP parameters

Following is explanation of advanced SIP parameters in the V85 SIP configuration page. Note that these will generally not need to be adjusted unless you are directed to do so by a VoIP Service Provider or NetComm Technical Support.

Reg. Expire		Duration of interval for SIP ‘keep-alive’ registration.
RTP Port		The base port of the range of the transmitted RTP
		packets port;
Note:	The real port range that V85 uses for RTP packets is from specified base
	port to base port+6. For example, if base port is 16384, then real range is
	16384 ~ 16390.
Codec		The type of the Codec of the transmitted RTP
		packets.
RTP Packet Interval		This setting lets you choose RTP packet interval ;
		please ask your VoIP service provider for the best
		value. The default setting is 20ms for G.729 codec,
		30ms for G.723 codec. In the keypad configuration,

it uses the term “LowRate”, to indicate this setting. When you choose either 40ms for G.729 or 60ms G.723, the keypad configuration shows “LowRate True”.

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