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SIP Release Notes 148 Document #: LTRT-26901
CPE SIP Products
3. The ICMP protocol is not supported. The device is unable to generate ICMP PING
packets. The SIP Gateway Alternative Routing feature using PING packets is not
supported.
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
4. T.38 fax relay using the same port as RTP (T38UseRTPport = 1) is not supported.
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
5. For the IP-to-IP application, since the back-to-back user agent (B2BUA) mode is
based on full termination at each leg, some requests, headers and URI parameters
and message bodies are omitted or changed while traversing the device. Responses
to requests within a SIP dialog are always sent independently at each leg regardless of
the other leg’s response.
• The following SIP Methods are omitted by the IP-to-IP application:
♦ MESSAGE
♦ PUBLISH
♦ SUBSCRIBE
♦ NOTIFY
♦ Out-of-dialog REFER
♦ Any other proprietary Method
• The following SIP message components are omitted by the IP-to-IP application:
♦ Message body (other than SDP)
♦ Specific parameters in the SIP headers handled by the device (such as To,
From, P-Asserted, Diversion, Remote Party ID, and Contact)
♦ Specific parameters in the SDP – these parameters may affect the RTP flow
at each leg independently
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