Field
Content
Proxy
The SIP proxy to use when establishing outgoing connections in
peer to peer setups. This will in most cases be left blank when
registering with a service provider, although some service providers
may require registration via a SIP proxy.
From user
Defaults to the extension number of the initiator of the SIP call. If
the provider rejects the registration, the from user might need to be
set to the provider's registration / login number.
NAT
When enabled, the system ignores the SIP and SDP headers'
address and port and replies to the sender's address and port. This
should be enabled when the Com.X1 is located behind a NAT
router.
Secure
If this is setting is enabled, after registration with the SIP provider,
all invites will require successful authentication as well as port
number matching.
Disabling this settings allows invites to proceed without further
security requirements after successful registration.
Qualify
connection
When enabled, checks the reachability of the peer every 60
seconds.
Contact # for
incoming
A DID number to assign to incoming calls on this SIP trunk. This
facilitates inbound routing where the DID is not provided by the SIP
provider.
Maximum #
channels
The maximum number of simultaneous SIP channels supported on
this trunk. Leave blank for no limit.
