6 SIP Parameters

You can use the VoIP > Advanced VoIP Setup > SIP Parameters menu to configure particular aspects of the Session Initiation Protocol (SIP) implementation. The menu items include:

SIP Protocol Parameters

SIP Response Codes

SIP Distinctive Ring Names

SIP Protocol Timers

SIP Protocol Parameters

Parameter

Description

Default

SIP Require User Name

Enables or disables a requirement that an

Disabled

 

incoming INVITE include a SIP user name

 

 

assigned to the VoIP subsystem in an

 

 

active account.

 

SIP Local Port (1024-65535)

Local UDP port used for sending/

5060

 

receiving SIP call control messages. This

 

 

port can be mapped by a firewall.

 

SIP Public External IP Address

Forces a specific external IP address for

0.0.0.0 (Disabled)

 

SIP messages sent

 

SIP Public External Port

Forces a specific external UDP port for

0 (Disabled)

 

SIP messages sent

 

TOS Value (0x00 – 0xff)

Type of service (TOS) value or DIFFServ

68 (DIFFSRV

 

DSFIELD used for SIP message

Expedited

 

 

Forwarding)

SIP Accept Language String

Specifies the language for user-viewable

English

 

messages used in the SIP accept

 

 

message

 

SIP Send Response to SRC Port

Respond to the sender’s IP address/UDP

Enabled

 

port used by SIP request message

 

SIP Max Forwards

Maximum forward value

15

SIP Ringing Retransmit

Enables or disables retransmission

Enabled

 

 

 

SIP Use NAT Discovery

Enable use of NAT discovery procedures

Enabled

 

to obtain an external IP address/UDP port

 

 

mapping for SIP messages

 

SIP Use Received Via Info

Use VIA header IP address/UDP port

Disabled

 

parameters in received messages as

 

 

external IP address/UDP port

 

Chapter 6: SIP Parameters

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Zoom X6v VoIP manual SIP Parameters, SIP Protocol Parameters

X6v VoIP specifications

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