But it can also handle other functions, including session setup (initiating a call at the target endpoint—the phone you're calling), presence management (giving an indicator of whether a user is "available," "away," etc.), location management (target registration), call monitoring, and more. Despite all that capability, SIP is simple compared to other VoIP protocols primarily because it's text-based and built on an easy request/response model that's similar in many ways to both HTTP and SMTP. Yet, it's still capable of handling the most complex operations performed by business-grade PBXes.
On top of that, Nextiva instant messaging lets you tend to clients who are not big on talking but still want to get in touch with your company. And with its top-of-the-line cloud PBX, you can kiss your traditional desk phone goodbye. Small business owners can take advantage of Nextiva softphones for both internal and external communication over the internet with HD call quality. Larger businesses set in their ways can keep their existing hardware or buy additional phones sold by this VoIP service provider.

Your customers are increasingly diverse and it's more important than ever to ensure your business can communicate globally. As more business is done across international lines it's necessary to ensure you can make and receive calls from anywhere in the world. Your next critical business call may not come from where you expect, and Suddenlink Business Voice offers competitive per-minute rates to keep the conversation going for longer than ever.
1. Thank Them or Apologize. The basic rule of thumb is that callers should hear one of two things when they first connect with your voicemail — either an apology for not being able to answer the call or a “thank you” for having called.