SDP Payload Types | Linksys SPA 900 SERIES guide

Chapter 5 Linksys IP Phone Field Reference

SIP Tab

	Field	Description

	RTCP Tx Interval	Interval for sending out RTCP sender reports on an active connection. It can range from
	(not applicable to SPA901)	0 to 255 seconds. During an active connection, the Linksys IP phone can be programmed
	(not applicable to SPA901)	to send out compound RTCP packet on the connection. Each compound RTP packet

		except the last one contains a SR (Sender Report) and a SDES (Source Description). The
		last RTCP packet contains an additional BYE packet. Each SR except the last one contains
		exactly 1 RR (Receiver Report); the last SR carries no RR. The SDES contains CNAME,
		NAME, and TOOL identifiers. The CNAME is set to <User ID>@<Proxy>, NAME is set
		to <Display Name> (or Anonymous if user blocks caller ID), and TOOL is set to the
		Vendor/Hardware-platform-software-version (such as Linksys/Linksys IP
		phone-1.0.31(b)). The NTP timestamp used in the SR is a snapshot of the Linksys IP
		phone’s local time, not the time reported by an NTP server. If the Linksys IP phone
		receives a RR from the peer, it attempts to compute the round trip delay and show it as the
		<Call Round Trip Delay> value (ms) in the Info section of Linksys IP phone web page.
		Defaults to 0.

	No UDP Checksum	Select yes if you want the Linksys IP phone to calculate the UDP header checksum for
	(not applicable to SPA901)	SIP messages. Otherwise, select no.
	(not applicable to SPA901)	Defaults to no.
		Defaults to no.

	Symmetric RTP	Enable symmetric RTP operation. If enabled, sends RTP packets to the source address and
	(not applicable to SPA901)	port of the last received valid inbound RTP packet. If disabled (or before the first RTP
	(not applicable to SPA901)	packet arrives) sends RTP to the destination as indicated in the inbound SDP.

		Defaults to yes.

	Stats In BYE	Determines whether the Linksys IP phone includes the P-RTP-Stat header or response to
	(not applicable to SPA901)	a BYE message. The header contains the RTP statistics of the current call. Select yes or
	(not applicable to SPA901)	no from the drop-down menu. The format of the P-RTP-Stat header is:

		P-RTP-State: PS=<packets sent>,OS=<octets sent>,PR=<packets received>,OR=<octets
		received>,PL=<packets lost>,JI=<jitter in ms>,LA=<delay in ms>,DU=<call duration in
		s>,EN=<encoder>,DE=<decoder>.
		Defaults to no.

SDP Payload Types

The configured dynamic payloads are used for outbound calls only where the Linksys IP phone presents the SDP offer. For inbound calls with a SDP offer, the Linksys IP phone follow the caller dynamic payload type assignments.

The Linksys IP phone uses the configured codec names in its outbound SDP. The Linksys IP phone ignores the codec names in incoming SDP for standard payload types (0 – 95). For dynamic payload types, the Linksys IP phone identifies the codec by the configured codec names. Comparison is case-insensitive.

	Field			Description

	AVT Dynamic Payload			AVT dynamic payload type. Ranges from 96-127.
				Defaults to 101.

			Linksys IP Phone Administrator Guide
			Linksys IP Phone Administrator Guide

	5-14			Firmware Version 5.1
	5-14			Firmware Version 5.1

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Linksys SPA 900 SERIES manual SDP Payload Types

Contents

Linksys Voice System SPA 900 Series IP Phones N T E N T S Front Panel Back Panel SPA922 SPA932 SPA941 SPA942 SPA962 Localization Directory Time/Date Voice Mail Network Phone Phone Tab General User Document Audience Preface To do this Refer to Related DocumentationTechnical Support Overview Product Name RJ-45 Voice Lines Additional Features/Notes Linksys IP Phones in a VoIP Network Linksys IP Phone Features Introducing Linksys IP Phones Linksys IP Phone Features Algorithm Complexity MOS Score SPA901 FeaturesSPA92x, SPA94x, SPA962 Ensuring Voice Quality SIP Proxy Redundancy Feature Descriptions Algorithm Description Supported Codecs Dtmf Other FeaturesFeature Description Session Initiation Protocol, Technology Background Session Initiation Protocol Using Linksys IP Phones with a Firewall or Router NAT Overview Network Address Translation Simple Traversal of UDP Through NAT Stun NAT Types SIP-NAT Interoperation Linksys 900 Series IP Phones Getting Started SPA901 Caring for Your Hardware Back Panel SPA92x, SPA94x, and SPA962 Hardware FeaturesFeature Function Front Panel and Side of Phone Front Panel SPA921 SPA932 SPA922 AUX OUT SPA941Port/LED Meaning AUX SPA941 SPA942 SPA942 SPA962 Establishing Connectivity SPA9000 IP PBX System Approximate bandwidth budget for Installing the SPA900 Series IP PhoneBandwidth Requirements1 Codec Each side of conversation Calls Mounting the Phone to the Wall Assembling the Phone and Connecting to the NetworkAttaching the Desk Stand Turning on the Phone Using the Administration Web ServerConnecting to the Administration Web Server Click Admin and Advanced Administrator Account Privileges Resync URL Upgrade URLWeb Interface URLs Provisioning Capabilities Reboot URLConfiguration Profile Provisioning Using the IVR Menu on a Linksys SPA901 Phone Using the Interactive Voice Response Interface IVR Action IVR Menu Choice Parameters IVR Options Getting Started ALL NON-DEFAULT Entering a Password through the IVRNON-DEFAULT Settings will be Lost Linksys IP Phone Administrator Guide SPA900 Series LCD Display Controls Using the 900 Series LCD Display SPA900 Series LCD Controls Label SPA962 Label Description Using Soft Keys Input Mode Soft Key Cursor appending Cursor inserting Entering and Saving Settings Localization Following is an example value Changing the Display Background SPA942/962 Background Picture Parameters Using the SPA932 Sidecar with the SPA962 Configuring the Broadsoft Server for the SPA932 Configuring the SPA9000 for the SPA932 Example 3-1 Asterisk Context for SPA932 Configuring the Asterisk Server for the SPA932 Example 3-2 Asterisk Subscribecontext for SPA932 Configuring the SPA932 SPA932 Configuration Asterisk syntax Broadsoft syntax Web Interface Basic and Advanced Views Configuring the Web ServiceConfiguration Parameters Monitoring the SPA932 Proxy1, RTPPacketSize, DNDActCode Data Types Example 1 Normal Ring Managing Linksys IP Phones Configuring the Web Service Example 3 SIT Tone RSS Newsfeeds SPA962 Call Appearances and Extensions LED Script Line Key LEDs Example LED PatternLED Script Examples Selecting the Audio I/O Device and Line Using Call Features Answering and Ending Calls Making Calls Three-Way Conferencing Hold and ResumeCall Waiting Speed Dialing Blind Call Transfer Attended Call Transfer Muting Calls Accessing VoicemailCall Back Message Waiting Indication MWI Caller and Called Name Matching Shared Call AppearancesPersonal Directory Call Logs Supplementary ServicesDialing Assistance Operation Steps Audio Volume Adjustment 8illustrates the user interface provided by this utility Managing Ring Tones Dial Plan Digit Sequences Configuring a Dial Plan Sub-sequence Substitution Dial Plan RulesDigit Sequence Syntax Element Repetition Dial Plan Examples ParName Dial Plan TimersInterdigit Long Timer Default Dial Plans System AdministrationReboot and Restart Interdigit Short Timer Daylight Saving Time Factory ResetPassword Protection Managing the Time/Date Using Star Codes to Activate/Deactivate Services Managing Linksys IP Phones System Administration Disabling Services Error and Log Reporting Troubleshooting FAQ There may be a problem if the screen displays Not Registered Firmware Version SPA900 Series LCD Command Reference Entering Names and Numbers into the Directory Entering Directory Names, Numbers and Ring DefaultDirectory Call History Shortcut SetupSpeed Dial Answered Calls Ring TonePreferences Redial List Do Not Disturb Block Caller IDBlock Anonymous Call Auto Answer Secure CallDial Assistance Preferred Audio Device Preferred Audio Device Cfwd Busy Number Cfwd No Ans DelayCall Forward Cfwd All Number Voice Mail Shortcut Setup, 7 ,date, time, offset, saveShortcut Setup, 8, voicemailnumber, save Time/Date Domain DchpCurrent IP Address Host Name Current Gateway Enable Web ServerNon Dhcp Default Route Current NetMask Multicast Address Non Dhcp DNSNon Dhcp NTP Server 18 CDP Enable VlanProduct Info Vlan ID Status Ext 1/2/3/4 Line 1, 2,3,4Provisioning Phone Restart RebootFactory Reset Custom Reset Language SPA922, 942, Set PasswordSet LCD Contrast CallPark Status GUI Properties SPA962 Web Service SPA962 Linksys IP Phone Field Reference Dhcp Info TabSystem Information Field Description Ext 1/2/3/4/5/6 Status Phone Status REN Line 1/2/3/4/5/6 Call 1/2 Status Downloaded Ring Tone Internet Connection Type System ConfigurationSystem Tab Field Static IP SettingsPPPoE Settings Optional Network Configuration Vlan ID Vlan Settings SIP Parameters SIP Tab Field Description SIP T4 SIP Timer Values secSIP T1 SIP T2 Field Description RTP Parameters Response Status Code Handling SDP Payload Types Field Description NAT Support Parameters EXT IP Linksys Key System Parameters Provisioning Tab Call Progress Tones Regional Tab Distinctive Ring Patterns Control Timer Values sec Vertical Service Activation Codes Field Description Field Description Outbound Call Codec Selection Codes Vertical Service Announcement Codes Field Description Miscellaneous Field Description As follows Line Key 1/2/3/4/5/6 Phone TabGeneral Line Key LED Pattern Miscellaneous Line Key Settings Field Description Supplementary Services Ring Tone Extension Mobility Auto Input Gain dB Ext Tab Share Line Appearance NAT SettingsNetwork Settings SIP Settings Field Description Call Feature Settings Proxy and Registration Field Subscriber Information Audio Configuration Field Description Field Description Dial Plan Entry Functionality Dial Plan 1xxxxxxxxxx@fwdnat.pulver.com5082uid=jsmithpwd=xyz Speed Dial UserCall Forward Traffic Service Information Settings SPA962 Web Information Service Settings SPA962 Phone GUI Menu Color Settings SPA962 only Audio Volume Call Pickup Code Tab SPA962 only Replace the variables in italics, as follows Unit Unit 2 Key See the description for Unit SPA932 Status CAS ANCB2BUA BLF Http FXSITU Html SLA SDPSdram SIP Appendix a Acronyms Linksys IP Phone Administrator Guide Glossary Appendix B Glossary