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Version 6.2 151 December 2010
SIP Release Notes 3. Known Constraints
6. Announcements and streaming cannot be performed on IP-to-IP wideband calls.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
7. The RFC 2198 Redundancy mode with RFC 2833 is not supported (i.e., if a complete
DTMF digit is lost, it is not reconstructed). The current RFC 2833 implementation
supports redundancy for lost inter-digit information. Since the channel can construct
the entire digit from a single RFC 2833 end packet, the probability of such inter-digit
information loss is very low.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
8. The duration resolution of the On and Off time digits when dialing to the network using
RFC 2833 relay is dependent on the basic frame size of the coder being used.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
9. The Calling Tone (CNG) detector must be set to Transparent mode to detect a fax
CNG tone received from the PSTN, using the Call Progress Tone detector.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410