Hi Mike, <br><br>It is possible to implement all PBX functions using OpenSIPS. It is not easy, it depends on your phones and gateways. They have to support several RFCs such as RFC3515, RFC3891, RFC3892. Check RFC5359 (<a href="http://tools.ietf.org/html/rfc5359">http://tools.ietf.org/html/rfc5359</a>) for more details about call flows. I have successfully implemented most of them including Call Pickup, Call Forward, Attended and Unattended Transfers. Asterisk is an excellent gateway when you want to implement all these features. A good phone is also important. Don't try this with X-Lite. <br>
<br>Best Regards, <br clear="all"><br>Flavio E. Goncalves<br>CEO - V.Office <br>Fone: +554830258590/+554884085000<br>OpenSIPS Bootcamp (New Jersey, NY Nov. 15-19)<br><br>
<br><br><div class="gmail_quote">2010/10/24 Mike O'Connor <span dir="ltr"><<a href="mailto:mike@oeg.com.au">mike@oeg.com.au</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi Guys<br>
<br>
I've been using OpenSIPS now for about 9 month (after upgrading from<br>
OpenSER 1.2 used that for about 2 years) for my core SIP routing and<br>
billing.<br>
<br>
I'm now getting questions from customers about Virtual PBX functionality<br>
and I would like the opinion of the group about how well this could be<br>
done using OpenSIPS, Mediaproxy and maybe SEMS.<br>
<br>
My current core system has voicemail, call forwarding and T38 fax using<br>
sip forwards to asterisk, but as normal with Asterisk I do get<br>
occasional calls issues, mostly related to codec negotiation.<br>
<br>
I want to be able to have all the normal PBX functions like Auto<br>
attendant, Call forwarding on busy or absence, Call Park, Call pickup,<br>
Call transfer, Call waiting, Conference Call, Custom Greeting, Voice<br>
Mall, Public Addressing, DND, Direct Inward Dial, Busy Lamp. ETC<br>
<br>
So your comments requested.<br>
<br>
Thanks<br>
Mike<br>
<br>
<br>
<br>
<br>
_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
</blockquote></div><br>