Cisco CUBE Dial Plan – Source-Based Call Routing Using Voice Class URI and Dial Peer Group

Configure voip service and add the IP addresses of the servers HQ-CUCM and BB-CUCM into the trusted list.

voice service voip

allow-connections sip to sip

media statistics

mode border-element

ip address trusted list

ipv4 10.1.5.15 255.255.255.255

ipv4 10.1.6.16 255.255.255.255

sip

early-offer forced

Configure the tenant 100 for HQ site, specify sip-server 10.1.5.15. For each dial peer instead of repeatedly entering the SIP server interface address for each dial peer. We will use the session target sip-server command under each outgoing dial peers. Specify the Binding interface that will receive incoming calls from HQ-CUCM.

voice class tenant 100

sip-server ipv4:10.1.5.15

session transport tcp

url sip

error-passthru

bind control source-interface GigabitEthernet1

bind media source-interface GigabitEthernet1

no pass-thru content custom-sdp

Configure the tenant 200 for BB site, specify sip-server 10.1.6.16. For each dial peer instead of repeatedly entering the SIP server interface address for each dial peer. We will use the session target sip-server command. Specify the Binding interface that will receive incoming calls from BB-CUCM.

voice class tenant 200

sip-server ipv4:10.1.6.16

session transport tcp

url sip

error-passthru

bind control source-interface GigabitEthernet3

bind media source-interface GigabitEthernet3

no pass-thru content custom-sdp

Calls from From HQ-CUCM To BB-CUCM

Configure the voice class URI 300 to match the HQ-CUCM IP address 10.1.5.15.

voice class uri 300 sip

host ipv4:10.1.5.15

Define the dial peer group 200, the purpose is to route incoming calls to dial peer 301301.

voice class dpg 200

description Incoming HQ-CUCM (Dial Peer 300) to BB-CUCM (Dial Peer 301301)

dial-peer 301301 preference 1

The incoming dial peer 300 matches the HQ-CUCM IP address 10.1.5.15 based on the voice class URI 300 using the incoming uri via 300 command, then the incoming call is routed to the dial peer group 200 because the destination dpg 200 command.

dial-peer voice 300 voip

description Incoming dial-peer from HQ-CUCM to BB-CUCM

session protocol sipv2

destination dpg 200

incoming uri via 300

voice-class sip tenant 100

Because the Dial Peer Group 200 points to Dial Peer Voice 301301 the call is routed to the outgoing dial peer 301301.

The dial peer 301301 is associated to the tenant 200 using the voice-class sip tenant 200 command, the session target sip-server command instructs the CUBE to use the sip-server 10.1.6.16 configured previously in voice class tenant 200 to send outgoing calls to BB-CUCM.

dial-peer voice 301301 voip

description Outbound to BB-CUCM

destination-pattern BAD.BAD

session protocol sipv2

voice-class sip tenant 200

session target sip-server

Calls From BB-CUCM To HQ-CUCM

Configure the voice class URI 400 to match the BB-CUCM IP address 10.1.6.16.

voice class uri 400 sip

host ipv4:10.1.6.16

Define the dial peer group 301, the purpose is to route incoming calls to dial peer 201201.

voice class dpg 301

description Incoming BB-CUCM (Dial Peer 500) to HQ-CUCM (Dial Peer 201201)

dial-peer 201201 preference 1

The incoming dial peer 400 matches the BB-CUCM IP address 10.1.6.16 based on the voice class URI 400 using the incoming uri via 400 command, then the incoming call is routed to the dial peer group 200 because the destination dpg 200 command.

dial-peer voice 500 voip

description Incoming dial-peer from BB-CUCM to HQ-CUCM

session protocol sipv2

destination dpg 301

incoming uri via 400

voice-class sip tenant 200

Because the Dial Peer Group 301 points to Dial Peer Voice 201201, the call is routed to the outgoing dial peer 201201.

The dial peer 201201 is associated to the tenant 100 using the voice-class sip tenant 100 command, the session target sip-server command instructs the CUBE to use the sip-server 10.1.15.15 configured previously in voice class tenant 100 to send outgoing calls to HQ-CUCM.

dial-peer voice 201201 voip

description Outbound to HQ-CUCM

destination-pattern AAAA

session protocol sipv2

voice-class sip tenant 100

session target sip-server