Comments
www.ripe.net/ripe/meetings/ripe-46/.../ripe46-eof-enum-sip-pstn.pdf
Posted by saqlain231
By SIP phone
It avilable in keyboard also
or we use softwares
Posted by saqlain231
Using different SIP phones available in the market provided by different vendors.
Posted by sagitraz
Different SIP Phones are available.
And different service providers are available in market that provides this service.
But money require to do this.
But in some countries it is free of cost.
Posted by waqqas1
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