Cisco Cisco Expressway
Creating a search rule to route calls to the Unified CM
neighbor zone
neighbor zone
Search rules specify the range of telephone numbers / URIs to be handled by this neighbor Unified CM. They
can also be used to transform URIs before they are sent to the neighbor.
can also be used to transform URIs before they are sent to the neighbor.
ensure that dial
strings are in URI format number@exp.domain.
1. Go to
Configuration > Dial plan > Search rules
.
2. Click New.
3. Configure the fields as follows to route the call to Unified CM:
Rule name
Route to CUCM
Description
For example: Send 3xxx@exp.domain calls to CUCM
Priority
100
Protocol
Any
Source
Any
Request must be authenticated
Configure this setting according to your authentication policy
Mode
Alias pattern match
Pattern type
Regex
Pattern string
(3\d{3})@exp.domain(.*)
Pattern behavior
Leave
(@domain formatted addresses will work in Unified CM due to the
Cluster Fully Qualified Domain Name enterprise parameter)
Cluster Fully Qualified Domain Name enterprise parameter)
On successful match
Stop
Target zone
CUCM Neighbor
State
Enabled
4. Click Create search rule.
Creating a transform that converts number@<IP address of
cucm> to number@exp.domain
cucm> to number@exp.domain
When a call is made from Unified CM to Expressway, the callback address is presented as number@<ip
address of cucm>. If the destination endpoint returns the call, the Expressway needs to be able to route it
back to Unified CM. To enable this, the domain portion of the address must have the IP address removed and
the video domain added (so that the existing search rule can route the call to Unified CM). A transform is
required:
address of cucm>. If the destination endpoint returns the call, the Expressway needs to be able to route it
back to Unified CM. To enable this, the domain portion of the address must have the IP address removed and
the video domain added (so that the existing search rule can route the call to Unified CM). A transform is
required:
1. Go to
Configuration > Dial plan > Transforms
.
Cisco Unified Communications Manager with Cisco Expressway (SIP Trunk) Deployment Guide (X8.6)
Page 18 of 37
Configuring Expressway routing