Can anybody inform if there are any countries that do not allow voice calls over the internet?? I am assuming that this should not extend to a customers WAN if they are running centralised CUCM cluster?
Someone has mentioned that Cisco and a n other can split the voice traffic so call control can be passed as normal and the actual voice call is routed via the carrier Telco?
Do not understand how this could possibly work?
Then you need to read this to understand how it works, and yes, some countries have specific laws on VoIP.
Applicability to Requirements From Indian Telecom Regulations
Regulations of the Telecom Regulatory Authority of India (TRAI) require that voice traffic over the enterprise data network and the Public Switched Telephone Network (PSTN) must be strictly separated and no mixing of calls between the two networks can occur for the purpose of toll bypass.
The following list shows basic scenarios that are restricted (that is, not allowed):
•The call that passes through a PSTN gateway connects directly by using WAN to a VoIP phone or VoIP PSTN gateway in a different geographic location.
–If PSTN gateway is located in India, this remains strictly restricted. If the PSTN is in another country and a VoIP phone is in India and if connection results in revenue loss to Indian telecom service providers, the connection gets considered restricted.
The following list gives basic scenarios that are permitted:
•Call directly between two VoIP phones in different geographic locations
•Call from a VoIP phone to a PSTN gateway in the same geographic location
A call that passes through a PSTN gateway must never connect directly to a VoIP phone or VoIP PSTN gateway in a different site or geographic location (geolocation) through use of IP telephony.
Requirement for Deployments
While following TRAI regulations and avoiding toll bypass, a single-line phone should be able to reach outside VoIP (closed user group [CUG]) or PSTN networks, provided that the suggested configuration guidelines are met.
Note Ensure logical partitioning is enabled to avoid any toll bypass.
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