s*****g
发帖数: 1055 | 1 Many ITSPs are now offering hosted VoIP services to small/medium size
enterprises where customers just need to plug&play cheap SIP phones to their
internal network behind firewall, call control etc will be located in the
cloud. Customer does not have to do anything special on their firewall. I am
wondering typically how the call works, remember that the firewall/NAT
device does not need to be SIP aware, so how does internal SIP phone tell
other party where to send media to? using STUN to find i | z**r
发帖数: 17771 | 2 or SBC?
their
am
【在 s*****g 的大作中提到】
: Many ITSPs are now offering hosted VoIP services to small/medium size
: enterprises where customers just need to plug&play cheap SIP phones to their
: internal network behind firewall, call control etc will be located in the
: cloud. Customer does not have to do anything special on their firewall. I am
: wondering typically how the call works, remember that the firewall/NAT
: device does not need to be SIP aware, so how does internal SIP phone tell
: other party where to send media to? using STUN to find i
| s*****g
发帖数: 1055 | 3 SBC in customer premise? as I mentioned there is nothing that is voice aware
in customer's network, no SIP aware firewall/ALG, no SBC/CUBE.
Whether SBC is deployed in ITSP's network it is transparent to customer.
【在 z**r 的大作中提到】
: or SBC?
:
: their
: am
| z**r
发帖数: 17771 | 4 那就只能用STUN之类的了
aware
【在 s*****g 的大作中提到】
: SBC in customer premise? as I mentioned there is nothing that is voice aware
: in customer's network, no SIP aware firewall/ALG, no SBC/CUBE.
: Whether SBC is deployed in ITSP's network it is transparent to customer.
|
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