Understanding the gateway routing table

Entries in the gateway routing table include:

The called party address and calling party address on the outgoing side of the gateway are usually strings that contain substitution variables ($1, $2, ….). The substitution variables represent substrings that are captured from the pattern match on the incoming calls. For information, see Routing table expressions.

You can define up to 2048 routes.

Routing table fields

The following table describes the fields in the routing table:

Field

Description

[number]

Number of the routing rule entry in the ordered list.

Profile

Profile associated with this routing rule entry. For information about routing profiles, see Using routing profiles.

Incoming Called party

Regular expression for valid PSTN numbers or valid URIs that signify the called party on the incoming side of the Video Gateway.

Incoming Calling party

Regular expression for valid PSTN numbers or valid URIs that signify the calling party on the incoming side of the Video Gateway.

Outgoing Called party

Regular expression for valid PSTN numbers or valid URIs that signify the called party on the outgoing side of the Video Gateway.

Enter reject to reject calls that match the routing rule.

Outgoing Calling party

Regular expression for valid PSTN numbers or valid URIs that signify the calling party on the outgoing side of the Video Gateway.

Routing table rules

The routing engine starts at the top of the routing table, and searches for the first entry to match all of these criteria:

The first routing table entry to match all of these criteria determines how the call is routed.

Because the routing engine starts the search at the top of the table, the first rule in the table is the highest priority and the last rule is the lowest priority. You should list matches for more specific patterns before matches for less specific patterns within a particular incoming call type (tel or sip) in the table.

Each call must match a rule in the routing table. Calls that do not match a routing table rule are rejected by default. For more information, see Routing table expressions and Routing table examples overview. For information about routing profiles, see Using routing profiles.