SECTION 2 |
18
AUDIO TRANSPORT VIA MPEG OR OPTIONAL APTX® ENHANCED
FAQs
Do all the channels need to go to a single unit at the other end?
No. Each of the Zephyr iPort PLUS channels are independent and may be used individually. Simply enter the IP
numbers/ports for the unit you want to use at one or more other ends. Indeed, one codec instance may send an
audio stream to up to 8 different IP addresses and port numbers. Note that each iPort codec may
receive
from one
other codec only.
Can I use the Zephyr iPort PLUS with Telos Z/IP ONE™ or Zephyr Xstream® codecs at the other end?
Yes, with some care. Only a limited subset of all iPort functionality is interoperable. For example, there is no
support for user data channels or the advanced GPIO operations on other devices.
Can I use Zephyr iPort PLUS with codecs from other manufacturers?
Zephyr iPort PLUS creates and consumes standard MPEG streams with standard RTP/UDP/IP packet formatting -
nothing proprietary or special. Theoretically, it should work with other manufacturers codecs, but we cannot make
any guarantees. We recommend you do some experimentation on your own before committing to an equipment
purchase or broadcast of a major event.
Does Zephyr iPort PLUS conform to the ITU N/ACIP specification?
No, it does not. Zephyr iPort PLUS is intended for a different class of applications. The N/ACIP standard envisions
VoIP call-like operation with SIP control, whereas the the iPort is generally used in a ‘nailed-up’ way.
The Telos Z/IP ONE codec does conform to N/ACIP.
What about firewalls?
You will need to open the appropriate ports in your firewall to accept incoming IP-audio streams. The IP and port
numbers are easily set/determined from the Zephyr iPort PLUS’s Web pages, so you know which have to be opened.
Port translation in the router is allowed if that technique is valuable to your network operation. This follows from
the usual nailed-up applications for which Zephyr iPort PLUS is intended.
Telos Z/IP ONE codecs have sophisticated technology for automatically traversing most kinds of firewalls. To do
so, it uses a special ZIP Server that resides outside the firewall. (You can use the one we operate as a complimentary
service to Z/IP ONE users.) The Zephyr iPort PLUS has no way to use such a server because it does not use SIP for
call set-up.
