DID Call Latency

#1

I want to use a National DID in Thailand for incoming calls through the phone.systems PBX to SIP phone users in Thailand. What voice latency should I expect? More specifically, will the RTP traffic be routed between the PSTN gateway and the SIP phone users within the country, within the region (I see there’s a PoP in Singapore) or via Dublin / New York? The SIP phone software will support ICE.

#2

Hi

due to nature and functionality of phone.systems, audio still would be processed inside it. Thus RTP will not be routed between softphone and PSTN gateway directly and there might be a latency.

Best would be to check it with DIDWW tech. support or request a test account to check the real audio and latency.