User's Manual

Administering video endpoints
104 Administering Avaya Video Conferencing Solution 6.1 Issue 1
DRAFT
3. On the VBP-E administration page, navigate to Configuration Menu > VoIP ALG > H.323
> Neighboring. The Prefix routing table is displayed. To enable prefix routing functionality,
review the following list when completing the featured fields:
● Action : Indicates whether a prefix routing rule is to be added or edited
● Prefix : Specifies the prefix pattern to be matched against the dialing string
● Index : Determines the order in which the rule is scanned in the Prefix and
Gatekeeper Neighboring table. To add a rule between two rules with consecutive
indexes (n and m), use the higher index (m)
● Strip : Indicates whether the matching prefix is stripped from the dialing string
● Add : Specifies a string to be pre-pended to the dialing string
● Neighbor : Determines whether a location request (LRQ) is sent when this prefix
matches. If enabled, the prefix becomes a neighboring statement. If disabled, the
incoming Q.931 Setup is forwarded to the given address without a preceding LRQ.
When the incoming Q.931 Setup is forwarded without a preceding LRQ, this is
sometimes referred to as “prefix-routing”. This field is used for interoperability with
other gatekeepers that may not accept a Setup without a preceding LRQ.
The Polycom VBP-E does not support SIP IP address dialing. The E.164 number is mapped to
the IP address. H.323 endpoints can make IP address dialing using * instead of “.”. This is
called Alias Manipulation.
This feature is useful for endpoints that cannot easily dial ANNEX O user@host methods, most
H.323 system remotes have the * and # symbols on the key pad, and not to many have the @
symbol, for this reason default patterns have been set on the VBP. If a user wishes to dial
1234@1.1.1.1 they can enter the string as 1234#1*1*1*1 and the VBP by default will translate
this string as an ANNEX O method. This feature is commonly used in VBP-E series in
Embedded gatekeeper mode.
To access the H.323 Alias Manipulation page, navigate to VoIP ALG > H.323 > Alias
Manipulation in the Configuration Menu and set the following parameters:
● Action : Indicates whether a prefix routing rule is to be added or edited
● Pattern : Specifies the pattern to be matched
● Index : Determines the order in which the rule is scanned in the Prefix and
Gatekeeper Neighboring table. To add a rule between two rules with consecutive
indexes (n and m), use the higher index (m)
● Replace : Specifies the string that will replace the matched pattern