Which control frame messages are defined by MPCP?

What modulation mode is used for ADSL access in MA5600 products?

Is the following description correct? When the MA5600T MG interface communicates with the MGC through the H.248 protocol, the H.248 protocol version configuration that the MG interface starts to negotiate may be inconsistent with the MGC side.

Is the following description correct? Administrators can maintain and manage UA5000 devices through out-of-band network management or in-band network management.

Configure ADSL profile parameters in UA5000, what measures can improve line stability?