No ping to IP address

Hello

I did a simple configuration with RB750 Hex Lite to establish traffic between two networks, according to the details below:

RB750 Hex Lite version 6.45.7, installed from the scratch with Netinstall.
LAN 1 (client network): 10.150.0.0/255.255.0.0
LAN 2 (VoIP network): 10.153.80.240/255.255.255.248
ETH5: 10.150.60.3/255.255.0.0
One bridge with ETH1/ETH2/ETH3/ETH4
Bridge: 10.153.80.244/255.255.255.248
Router Cisco (VoIP): 10.153.80.241/255.255.255.248 connected in the ETH1
PABX IP: 10.153.80.242/255.255.255.248 connected in the ETH2.

RB 750 config is described below:

/interface bridge
add name=Bridge_Vivo

/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik

/ip hotspot profile
set [ find default=yes ] html-directory=flash/hotspot

/interface bridge port
add bridge=Bridge_Vivo interface=ether1
add bridge=Bridge_Vivo interface=ether2
add bridge=Bridge_Vivo interface=ether3
add bridge=Bridge_Vivo interface=ether4

/ip address
add address=10.153.80.244/29 comment=LAN_Vivo interface=Bridge_Vivo network=
10.153.80.240
add address=10.150.60.3/16 comment=“LAN Inpol” interface=ether5 network=
10.150.0.0

/ip firewall service-port
set sip disabled=yes

With this simple config I understand I should be able to ping any IP address on both networks. The problem is I can not ping the PABX IP at IP@ 10.153.80.242. But I can ping 10.153.80.241 of the router Cisco.

This is the situation I am facing. I thank you for any help.

Best regards.

Enio Eltz Filho.

How is IP routing configured on the PBX? Can you ping the PBX from the Mikrotik to which it is connected?

Also, what is the gateway IP configured in the PBX ?