Ok, thanks for these responses. I 'd like to add this: In RFC 3261 page 38 it is said:
Use of cryptographically random identifiers (RFC 1750 [12]) in the generation of Call-IDs is RECOMMENDED. in RFC 1750 8.2.3 it is said : probably a good minimum for a very high security cryptographic key is 128 bits of randomness which implies a minimum key length of 128 bits 2013/7/18 Brett Tate <[email protected]> > > 1) Why don't we have this info in RFC 3261? > > What does RFC says about max Call-id length? > > SIP has no maximum Call-ID length. > > > > 2) What about it actually? > > Today I put my call-id max length to 256 characters > > but I am not sure if it is correct ... > > You can impose a maximum; however that means that you will not be > interoperable with vendors sending values higher than your limit. > > > > 3) What about Call-id min length ? > > SIP has no minimum Call-ID length. However, it must be globally unique. > > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
