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SIP CALL PRESEVATION

karim7784
Level 1
Level 1

Dears appreciate help,

SIP call preservation call throught the gateway are not preserved to PSTN if we made a call from and IP phone registerd with a subscriber and if the sub. fail during the call the call drops there are know documents that talking about the SIP call preservation Anyone have these work it suppose to be work fin by default for SIP.

I appreciate if know any documents discuss the Call Preservation for SIP in a technical wise.

1 Reply 1

paolo bevilacqua
Hall of Fame
Hall of Fame

I personally think that call preservation is basically an unrealistic feature mentioned more for the desire of looking good than real usefulness.

If one of your server fails you have a bigger problem than users having to redial

But, if you are not willing to re-asess you expectations in light of the real world, let us know and good luck.