> From: Howard Kao > > I asked because some IP phones cannot register with our server if > their From: and To: address are like sip:[EMAIL PROTECTED]:5060. Most > phones can register well without the :5060, and some people are saying > that registration should work either with or without the :5060 or > other port number. Therefore I would like to know what's the official > view from RFCs on this.
Assuming we take guidance from section 25 rather than Table 1 of section 19.1.1, the URL is acceptable. But beware that adding the port number suppresses DNS SRV and NAPTR interpretation -- often, there is no machine with the name "server.com", but there is an SRV record for server.com pointing to the SIP server for that domain. So "sip:[EMAIL PROTECTED]" will work but "sip:[EMAIL PROTECTED]:5060" will not. Dale _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
