[Asterisk-Users] LipZ4 Sip Soft Phone

[siva kumar]

hi friends,
in sip.conf we have so many options like allow,disallow....
plz. anybody tell me what r the different uses of these allow and disalliow.
and also i am getting port "registered ip ,expired port no. mesg at server 
for every 30 sec.

thank u

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