Sipura Technology SPA-2000 manual SDP Audio Codec Names Parameter Name Description Default

NSE Dynamic Payload1,2	NSE dynamic payload type	100
AVT Dynamic Payload1,2	AVT dynamic payload type	101
G726r16 Dynamic Payload1,2	G726-16 dynamic payload type	98
G726r24 Dynamic Payload1,2	G726-24 dynamic payload type	97
G726r40 Dynamic Payload1,2	G726-40 dynamic payload type	96
G729b Dynamic Payload1,2	G729b dynamic payload type	99

Notes:

1.Valid range is 96 – 127

2.The configured dynamic payloads are used for outbound calls only where the SPA-2000 presents the SDP offer. For inbound calls with a SDP offer, SPA-2000 will follow the caller’s dynamic payload type assignments

3.4.4.2.SDP Audio Codec Names

Parameter Name	Description	Default
NSE Codec Name	NSE Codec name used in SDP	NSE
AVT Codec Name	AVT Codec name used in SDP	telephone-event
G711a Codec Name	G711a Codec name used in SDP	PCMA
G711u Codec Name	G711u Codec name used in SDP	PCMU
G726r16 Codec Name	G726-16 Codec name used in SDP	G726-16
G726r24 Codec Name	G726-24 Codec name used in SDP	G726-24
G726r32 Codec Name	G726-32 Codec name used in SDP	G726-32
G726r40 Codec Name	G726-40 Codec name used in SDP	G726-40
G729a Codec Name	G729a Codec name used in SDP	G729a
G729b Codec Name	G729b Codec name used in SDP	G729ab

Notes:

1.SPA-2000 uses the configured codec names in its outbound SDP

2.SPA-2000 ignores the codec names in incoming SDP for standard payload types (0 – 95).

3.For dynamic payload types, SPA-2000 identifies the codec by the configured codec names. Comparison is case-insensitive.

3.4.4.3. NAT Support

Parameter Name	Description		Default
Handle_VIA_received	If set to “yes”, the SPA will process the “received” parameter		No
	in the VIA header inserted by the server in a response to any
	one of its request. Else the parameter is ignored.
Handle_VIA_rport	If set to “yes”, the SPA will process the “rport” parameter in		No
	the VIA header inserted by the server in a response to any
	one of its request. Else the parameter is ignored.
Insert VIA received	Insert received parameter in VIA header in SIP responses if		No
	received from IP and VIA sent-by IP differ
Insert VIA rport	Insert rport parameter in VIA header in SIP responses if		No
	received-from port and VIA sent-by port differ
Substitute VIA addr	Use nat-mapped IP:port values in VIA header		No
Send Resp To Src Port	Send response to the request source port instead of the VIA		No
	sent-by port
STUN Server	STUN server to contact for NAT mapping discovery
STUN Enable	Enable the use of STUN to discover NAT mapping		No
© 2003 Sipura Technology, Inc		Proprietary (See Copyright Notice on Page 2)	22