SIP2SIP

= Device configuration =

<acronym title="WikiStart, Sip*, depth=3">TOC</acronym>

Setup your SIP application software or hardware device as follows:

General

	Username		XXX
	Password		YYY
	Domain		sip2sip.info
	Outboud proxy		proxy.sipthor.net

Replace XXX with your username and YYY with your password received during the registration of your SIP account.

We recommend that you:

1. Always register and set the refresh interval to 600 seconds or longer
 1. Always use the provided outbound proxy
 1. Disable any keep-alive technique in the client (like pings, NOTIFY or STUN), the servers take care of all these automatically
 1. Disable any SIP ALG support in the border router, most of the so called 'SIP enabled routers' on the market today are [http://www.voip-info.org/wiki/view/Routers+SIP+ALG broken]
 1. Disable voice activation detection (VAD) in your device

XCAP root

If you use SIP SIMPLE presence you need to set XCAP root:

XCAP root

https://xcap.sipthor.net/xcap-root@sip2sip.info/

MSRP relay

If you use SIP SIMPLE instant messaging based on MSRP, a relay is available for helping traverse the NAT. You need to use the relay if you are the receiving party and you are behind a NAT-ed router. The MSRP relays can be found in the DNS by using SRV lookup for _msrps._tcp.sip2sip.info.