AudioCodes Mediant 800B User Manual page 776

Parameter
CLI: fake-retry-after
[FakeRetryAfter]
Web/EMS: Enable P-
Associated-URI Header
CLI: p-associated-uri-hdr
[EnablePAssociatedURIHe
ader]
Web/EMS: Source Number
Preference
CLI: src-nb-preference
[SourceNumberPreference
]
CLI: src-hdr-4-called-nb
[SelectSourceHeaderForC
alledNumber]
User's Manual
a Retry-After header and with the period (in seconds) specified by this
parameter.

[0] Disable (default)

Any positive value (in seconds) for defining the period
When enabled, this feature allows the device to operate with Proxy
servers that do not include the Retry-After SIP header in SIP 503
(Service Unavailable) responses to indicate an unavailable service.
The Retry-After header is used with the 503 (Service Unavailable)
response to indicate how long the service is expected to be
unavailable to the requesting SIP client. The device maintains a list of
available proxies, by using the Keep-Alive mechanism. The device
checks the availability of proxies by sending SIP OPTIONS every
keep-alive timeout to all proxies.
If the device receives a SIP 503 response to an INVITE, it also marks
that the proxy is out of service for the defined "Retry-After" period.
Determines the device usage of the P-Associated-URI header. This
header can be received in 200 OK responses to REGISTER requests.
When enabled, the first URI in the P-Associated-URI header is used in
subsequent requests as the From/P-Asserted-Identity headers value.

[0] Disable (default)

[1] Enable
Note: P-Associated-URIs in registration responses is handled only if
the device is registered per endpoint (using the User Information file).
Determines from which SIP header the source (calling) number is
obtained in incoming INVITE messages.

If not configured or if any string other than "From" or "Pai2" is
configured, the calling number is obtained from a specific header
using the following logic:
a. P-Preferred-Identity header.
b. If the above header is not present, then the first P-Asserted-
Identity header is used.
c. If the above header is not present, then the Remote-Party-ID
header is used.
d. If the above header is not present, then the From header is
used.

"From" = The calling number is obtained from the From header.

"Pai2" = The calling number is obtained using the following logic:
a. If a P-Preferred-Identity header is present, the number is
obtained from it.
b. If no P-Preferred-Identity header is present and two P-
Asserted-Identity headers are present, the number is obtained
from the second P-Asserted-Identity header.
c. If only one P-Asserted-Identity header is present, the calling
number is obtained from it.
Notes:

The "From" and "Pai2" values are not case-sensitive.

Once a URL is selected, all the calling party parameters are set
from this header. If P-Asserted-Identity is selected and the Privacy
header is set to 'id', the calling number is assumed restricted.
Determines the SIP header used for obtaining the called number
(destination) for IP-to-Tel calls.

[0] Request-URI header = (Default) Obtains the destination number
776
Mediant 800B Gateway and E-SBC
Description
Document #: LTRT-10278