Polycom 1725-11530-200 Rev A1 manual Sdp Sdp, Sip Sip

Administrator’s Guide - SoundPoint IP / SoundStation® IPOptimization

	Permitted
Attribute	Values	Default	Interpretation
voIpProt.server.x.retryMaxCount	Null or	3	If set to 0 or Null, 3 is used.
	non-negative		retryMaxCount retries will be
	integer		attempted before moving on to
			the next available server.
voIpProt.server.x.expires.lineSeize	positive integer,	30	Requested line-seize subscrip-
	minimum 10		tion period.

a.This is the phone’s requested registration period. The period negotiated with the server may be different. The phone will attempt to re-register at the beginning of the overlap period. For example, if “expires”=3600 and “overlap”=60, the phone will re-register after 3540 seconds (3600 – 60).

4.6.1.1.3SDP <SDP/>

Attribute	Permitted	Default	Interpretation
	Values
volpProt.SDP.answer.userLo-	0 or 1	0	If set to 1, the phones uses its own pref-
calPreferences			erence list when deciding which codec
			to use rather than the preference list in
			the offer. If set to 0, disabled.

4.6.1.1.4 SIP <SIP/>

Attribute	Permitted	Default	Interpretation
	Values
voIpProt.SIP.useRFC2543hold	0, 1	0	If set to 1, use the obsolete c=0.0.0.0
			RFC2543 technique, otherwise, use
			SDP media direction attributes (such as
			a=sendonly) per RFC 3264 when initi-
			ating hold. In either case, the phone
			processes incoming hold signaling in
			either format.
voIpProt.SIP.lcs	0, 1	0	If set to 1, the proprietary “epid”
			parameter is added to the From field of
			all requests to support Microsoft®
			Office Live Communications
			Server 2005.

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