SIP Registration Settings

Devices that support DNS-SRV and/or DNS NAPTR

Parameter

Value

Note

Server

sip.kwebbl.net

Or whitelabel domain

Port

0 or empty

Depending on the device type

Registration Time

60 seconds

The lower the registration time, the faster the failover occurs in case of a disruption. The minimum allowed registration time is 60 seconds

Outbound Proxy, Registration Server

empty

Using a specific outbound proxy or registration server can break the failover functionality

If the device supports NAPTR, it will automatically choose the transport protocol. By default, TLS is preferred, followed by UDP, and finally TCP. If you want to influence which protocol is used, you can use one of the following domains as the server:

Server

TLS

UDP

TCP

sip.kwebbl.net

Y (1st preference)

Y (2nd preference)

Y (3rd preference)

notls.sip.kwebbl.net

N

Y (1st preference)

Y (2nd preference)

noudp.sip.kwebbl.net

Y (1st preference)

N

Y (2nd preference)

notcp.sip.kwebbl.net

Y (1st preference)

Y (2nd preference)

N

tlsonly.sip.kwebbl.net

Y

N

N

udponly.sip.kwebbl.net

N

Y

N

tcponly.sip.kwebbl.net

N

N

Y

Devices that do not support DNS-SRV but support Primary / Secondary servers

If the device does not support DNS-SRV, it is recommended to configure it using Primary / Secondary servers. Although less comprehensive than DNS-SRV, it provides some features to perform automatic failovers in case of a disruption.

Parameter

Value

Note

Primary Server

primary.sip.kwebbl.net

Or whitelabel domain

Secondary Server

secondary.sip.kwebbl.net

Or whitelabel domain

Port

5060

Transport Protocol

UDP

Use of TCP or TLS is not recommended

Registration Time

60 seconds

The lower the registration time, the faster the failover occurs in case of a disruption. The minimum allowed registration time is 60 seconds

Outbound Proxy, Registration Server

empty

Using a specific outbound proxy or registration server can break the failover functionality

Legacy phones that do not support DNS-SRV or Primary / Secondary servers

If your device does not support DNS-SRV or Primary / Secondary servers, you will not have failover in case of service disruptions.

Parameter

Value

Note

Server

sip.kwebbl.net

Or whitelabel domain

Port

5060

Transport Protocol

UDP

Use of TCP or TLS is not recommended

Registration Time

300 seconds

If needed, the outbound proxy can also be set to sip.kwebbl.net, especially for older or less common phones that may need this to function correctly.